Del Mar Photonics

Compact Pulsed Nd:YAG Lasers

Del Mar Photonics offers compact pulse Nd:YAG lasers with excellent beam quality, high energy/efficiency and possibility of efficient PRR changes with no significant degradation of the output beam parameters. No matter how you may wish to use it — as a stand­alone laser or as a pump source for tunable lasers and OPO — the Del Mar Photonics LQ529 laser provides a combination of high operation parameters, reliability and reasonable price which could not be achieved earlier.

Ring cavity design of the LQ529 oscillator ensures perfect balance of energy, beam quality and reliability.

Excellent Beam Quality
Compensation of depolarization over the Nd:YAG rod cross­section together with traditional advantages of ring cavities ensure excellent beam profile. Unique optical design of the LQ529 not only makes losses and distortions caused by induced birefringence almost negligible, but also minimizes thermal lensing effect. The above allows the user to vary pulse repetition rate within a wide range and requires no further cavity alignment to preserve high beam quality and output energy.

LQ529 lasers provide smooth beam profile for all harmonics.
Figures show beam profile at 355nm/50Hz.

This constitutes a great advantage over lasers using expensive and difficult to align Gaussian optics and thus demanding realignment and sometimes even replacement of optical components in order to avoid dramatic worsening of their output parameters if pulse repetition rate (PRR) has been changed.


Energy Through Efficiency
One of the main reasons for moderate efficiency of conventional Q-switched lasers is birefringence induced in the Nd:YAG rod leading to depolarization of laser output. Each time the beam passes through the cavity, depolarized lasing is filtered by various polarization units and is dropped out of the cavity that leads to decrease in laser operation efficiency. Optical design of the LQ529 laser cavity allows to practically eliminate energy losses caused by depolarization and provides laser energy output with more than 2% wall-plug efficiency of a laser system (total electrical-to-optical power efficiency). Such a high efficiency allows the LQ529 to provide up to 600mJ output energy without using an amplifier. Single rod and single flash lamp design is the determining factor for reduction of the laser price and maintenance costs.

Supplementing the basic model with a one­pass amplifier allows to provide up to 1500mJ output energy
in the fundamental (model LQ929) while preserving all the advantages of the LQ529 model.

A power supply unit and a self-contained water-to-air cooling system are integrated into one compact package. Remote controller with the tactile panel and large LCD makes laser operating much more convenient.


Stable And Reliable Operation
One of the obvious advantages of the laser is its absolute mechanical stability and rigidity.

Pulse-to-pulse energy stability of LQ529C laser at 355nm (THG)

All optical components are mounted on the rigid optical bench which is mechanically and thermally isolated from the laser housing. This ensures exceptional alignment stability even under toughest conditions of transportation and operation. All non­linear crystals and Pockels cell are temperature stabilized. Optical bench with cavity components is also temperature­stabilized. High-precision termo­stabilization ensures minimal pulse­to­pulse and long­term instability. Heating of optical components to the temperature exceeding ambient totally eliminates any risk of condensation. This feature along with dust­proof housing protects the optics from damage and minimizes the necessity in service. It should also be noted that the LQ529 laser design eliminates the necessity of any laser alignments after flashlamp replacement, while the replacement procedure itself takes less than 10 minutes.

All Harmonics Available
All harmonic options — 532nm, 355nm, 266nm and 213nm — are available as standard.
High-efficiency Harmonic Generators can be either built-in (except for the FiHG) or supplied as separate units upon the customer’s request. For this reason all the harmonics can be ordered with the laser or at later date.

Compact Intelligent Power Supply
A power supply unit and a self­contained water­to­air cooling system are integrated into one compact package. Compact size and closed loop cooling system which requires no external water, allow to place the power supply under the optical bench or wherever convenient. Computer control using the optional RS232 interface allows integration into laboratory or industrial automated systems.
High­power cooling system and automatic temperature control with 0.5°C precision ensure stable laser operation at up to 30°C ambient temperature. A heater built into the cooling system reduces warm-up time to several minutes even at 15°C ambient temperature.


ACCESSORIES AND OPTIONS

* Built-in and External Harmonic Generators up to 5th Harmonic
* Solid State Raman Converter
* Solid State Optical Parametric Oscillator OPO
* High Power Attenuator for All Harmonics
* Custom Configurations

Case studies:
Raman shifter for conversion from 1064 nm to 1328 nm

APPLICATIONS

Nonlinear optics
Excellent beam quality and high pulse energy allow to use the LQ529 laser for nonlinear spectroscopy, plasma physics, nonlinear optics and harmonic generation.

Spectroscopy
High pulse repetition rate allows to reduce data collecting time, while high stability almost eliminates calibration drift troubles in Raman and time-resolved spectroscopy.

Velocimetry
Critical for the success of PIV experimentation is stable, reliable compact laser source. The LQ529 ideally suits for most PIV experements. Del Mar Photonics offers several custom configurations for Particle Image Velocimetry experiments based on the LQ529.

Pump source
The LQ529 ideally suits for tunable lasers and OPO pumping. Models LQ829 and LQ929 are ideal pump lasers for terawatt class Ti:Sapphire amplifiers.

Material processing
Meets almost all major requirements made to lasers for industry applications. Design features provide a highest reliability and low demands to operation conditions. Low operating cost, fast and simple service are also significant factors for industrial applications of the LQ529 Laser.

Mobile laser systems
Unique mechanical rigidity and resistance to mis-alignments, low electricity consumption and air cooling make the LQ529 an ideal laser source for various mobile measuring and monitoring systems which may be installed on any transport means. Dust protected laser head design ensures long-term reliable operation of laser optical components even in field conditions.

 

Nd:YAG laser models

¹⁾ Harmonic generators built in laser head
²⁾ When operating with external harmonic generator LG105
³⁾ When SHG is optimized
⁴⁾ When THG is optimized
⁵⁾ At 1064 nm

* Excellent beam quality and stability
* All harmonics up to 213 nm
* High pumping efficiency
* Turn-key operation
* Remote controller and RS232 interface as standard
* No external water, single phase mains operation
* Low maintenance
 

Nd:YAG Laser LQ929 is used as pump laser for second stage amplifier in Femtosecond Terawatt Ti:sapphire Laser System Teahupoo MPA-XL

Product news and updates - Training Workshops - Featured Customer - Other News

	Trestles LH Ti:Sapphire laser Trestles LH is a new series of high quality femtosecond Ti:Sapphire lasers for applications in scientific research, biological imaging, life sciences and precision material processing. Trestles LH includes integrated sealed, turn-key, cost-effective, diode-pumped solid-state (DPSS). Trestles LH lasers offer the most attractive pricing on the market combined with excellent performance and reliability. DPSS LH is a state-of-the-art laser designed for today’s applications. It combines superb performance and tremendous value for today’s market and has numerous advantages over all other DPSS lasers suitable for Ti:Sapphire pumping. Trestles LH can be customized to fit customer requirements and budget. Reserve a spot in our Femtosecond lasers training workshop in San Diego, California. Come to learn how to build a femtosecond laser from a kit
	DPSS DMPLH lasers DPSS DMP LH series lasers will pump your Ti:Sapphire laser. There are LH series lasers installed all over the world pumping all makes & models of oscillator. Anywhere from CEP-stabilized femtosecond Ti:Sapphire oscillators to ultra-narrow-linewidth CW Ti:Sapphire oscillators. With up to 10 Watts CW average power at 532nm in a TEMoo spatial mode, LH series lasers has quickly proven itself as the perfect DPSS pump laser for all types of Ti:Sapphire or dye laser. Ideal for pumping of: Trestles LH Ti:Sapphire laser T&D-scan laser spectrometer based on narrow line CW Ti:Sapphire laser
	New laser spectrometer T&D-scan for research  that demands high resolution and high spectral density in UV-VIS-NIR spectral domains - now available with new pump option! The T&D-scan includes a CW ultra-wide-tunable narrow-line laser, high-precision wavelength meter, an electronic control unit driven through USB interface as well as a software package. Novel advanced design of the fundamental laser component implements efficient intra-cavity frequency doubling as well as provides a state-of-the-art combined ultra-wide-tunable Ti:Sapphire & Dye laser capable of covering together a super-broad spectral range between 275 and 1100 nm. Wavelength selection components as well as the position of the non-linear crystal are precisely tuned by a closed-loop control system, which incorporates highly accurate wavelength meter. Reserve a spot in our CW lasers training workshop in San Diego, California. Come to learn how to build a CW Ti:Sapphire laser from a kit
	AOTF Infrared Spectrometer Del Mar Photonics offer a handheld infrared spectrometer based on the acousto-optic tunable filter (AOTF). This instrument is about the size and weight of a video camera, and can be battery operated. This unique, patented device is all solid-state with no moving parts. It has been sold for a wide variety of applications such as liquid fuel analysis, pharmaceutical analysis, gas monitoring and plastic analysis. Miniature AOTF infrared spectrometer uses a crystal of tellurium dioxide to scan the wavelength. Light from a light source enters the crystal, and is diffracted into specific wavelengths. These wavelengths are determined by the frequency of the electrical input to the crystal. Since there are no moving parts, the wavelength scanning can be extremely fast. In addition, specific wavelengths can be chosen by software according to the required algorithm, and therefore can be modified without changing the hardware. After the infrared radiation reflects off of the sample, it is converted into an electrical signal by the detector and analyzed by the computer. Del Mar Photonics is looking for international distributors for RAVEN - AOTF IR spectrometer for plastic identification and for variety of scientific and industrial collaborations to explore futher commercial potential of AOTF technology. New: AOTF spectrometer to measure lactose, fat and proteins in milk
	Open Microchannel Plate Detector MCP-MA25/2 - now in stock! Microchannel Plate Detectors MCP-MA series are an open MCP detectors with one or more microchannel plates and a single metal anode. They are intended for time-resolved detection and make use of high-speed response properties of the MCPs. MCP-MA detectors are designed for photons and particles detection in vacuum chambers or in the space. MCP-MA detectors are used in a variety of applications including UV, VUV and EUV spectroscopy, atomic and molecular physics, TOF mass–spectrometry of clusters and biomolecules, surface studies and space research. MCP-MA detectors supplied as a totally assembled unit that can be easily mounted on any support substrate or directly on a vacuum flange. They also can be supplied premounted on a standard ConFlat flanges. buy online - ask for research discount!
	Hummingbird EMCCD camera The digital Hummingbird EMCCD camera combines high sensitivity, speed and high resolution. It uses Texas Instruments' 1MegaPixel Frame Transfer Impactron device which provides QE up to 65%. Hummingbird comes with a standard CameraLink output. It is the smallest and most rugged 1MP EMCCD camera in the world. It is ideally suited for any low imaging application such as hyperspectral imaging, X-ray imaging, Astronomy and low light surveillance. It is small, lightweight, low power and is therefore the ideal camera for OEM and integrators. buy online
	Hatteras-D femtosecond  transient absorption data acquisition system Future nanostructures and biological nanosystems will take advantage not only of the small dimensions of the objects but of the specific way of interaction between nano-objects. The interactions of building blocks within these nanosystems will be studied and optimized on the femtosecond time scale - says Sergey Egorov, President and CEO of Del Mar Photonics, Inc. Thus we put a lot of our efforts and resources into the development of new Ultrafast Dynamics Tools such as our Femtosecond Transient Absorption Measurements system Hatteras. Whether you want to create a new photovoltaic system that will efficiently convert photon energy in charge separation, or build a molecular complex that will dump photon energy into local heat to kill cancer cells, or create a new fluorescent probe for FRET microscopy, understanding of internal dynamics on femtosecond time scale is utterly important and requires advanced measurement techniques. Reserve a spot in our Ultrafast Dynamics Tools training workshop in San Diego, California.
	Beacon Femtosecond Optically Gated Fluorescence Kinetic Measurement System - request a quote  - pdf Beacon together with Trestles Ti:sapphire oscillator, second and third harmonic generators. Femtosecond optical gating (FOG) method gives best temporal resolution in light-induced fluorescence lifetime measurements. The resolution is determined by a temporal width of femtosecond optical gate pulse and doesn't depend on the detector response function. Sum frequency generation (also called upconversion) in nonlinear optical crystal is used as a gating method in the Beacon femtosecond fluorescence kinetic measurement system. We offer Beacon-DX for operation together with Ti: sapphire femtosecond oscillators and Beacon-DA for operation together with femtosecond amplified pulses. Reserve a spot in our Ultrafast Dynamics Tools training workshop in San Diego, California.
	Terahertz systems, set ups and components New band pass and long pass THz optical filters based on porous silicon and metal mesh technologies. Band pass filters with center wavelengths from 30 THz into GHz range and transmissions up to 80% or better. Standard designs with clear aperture diameters from 12.5 to 37.5 mm. Long pass filters with standard rejection edge wavelengths from 60 THz into GHz range. Maximum transmission up to 80% or better, standard designs at 19.0 and 25.4 mm diameters. Excellent thermal (from cryogenic to 600 K) and mechanical properties THz products: THz Spectrometer kit with Antenna THz transmission setup THz time domain spectrometer Pacifica fs1060pca THz time domain spectrometer Pacifica fs780pca THz detectors: Golay cell and LiTaO3 piroelectric detectors PCA - Photoconductive Antenna as THz photomixer Pacifica THz Time Domain Spectrometer - Trestles Pacifica Holographic Fourier Transform Spectrometer for THz Region Wedge TiSapphire Multipass Amplifier System - THz pulses generation Terahertz Spectroscopic Radar Mobile System for Detection of Concealed Explosives Band pass filters with center wavelengths from 30 THz into GHz range Long pass filters with standard rejection edge wavelengths from 60 THz into GHz range Generation of THz radiation using lithium niobate Terahertz crystals (THz): ZnTe, GaP, LiNbO3 - Wedge ZnTe
	iPCA - interdigital Photoconductive Antenna for terahertz waves Large area broadband antenna with lens array and high emitter conversion efficiency iPCA with LT-GaAs absorber, microlens array for laser excitation wavelengths l £  850 nm, adjusted hyperhemispherical silicon lens with a high power conversion efficiency of 0.2 mW THz power / W optical power. The iPCA can be used also as large area THz detector. The two types iPCAp and iPCAs have the same active interdigital antenna area but different contact pad directions with respect to the electrical THz field. Interdigital Photoconductive Antenna for terahertz waves generation using femtosecond Ti:Sapphire laser THz books
	IntraStage lowers the cost of test data management! Struggling with gigabytes or terabytes of test data? IntraStage easily transforms test data from disparate sources into web-based quality metrics and engineering intelligence you can use. Contact us today to discuss your test management requirements and specifications of your application.

Training Workshops

Come to San Diego next summer! Attend one of our training workshops in San Diego, California during summer 2011 Del Mar Photonics has presented training workshops for customers and potential customers in the past 3 years. Our workshops cover scientific basics, technical details and provide generous time for hands-on training. Each workshop is a three-day seminar conducted by professional lecturer from 10am to 4pm. It includes lunch, as well as a training materials. We have also reserved two days for Q&A sessions, one-on-one system integration discussions, social networking, and San Diego sightseeing. The following training workshops will be offered during this summer: 1. Femtosecond lasers and their applications 2. CW narrow line-width widely tunable lasers and their applications 3. Adaptive optics and wavefront sensors 4. Ultrafast (femtosecond) dynamics tools

Featured Customer

Trestles LH10-fs/CW laser system at UC Santa Cruz Center of Nanoscale Optofluidics Del Mar Photonics offers new Trestles fs/CW laser system which can be easily switched from femtosecond mode to CW and back. Having both modes of operation in one system dramatically increase a number of applications that the laser can be used for, and makes it an ideal tool for scientific lab involved in multiple research projects. Kaelyn Leake is a PhD student in Electrical Engineering. She graduated from Sweet Briar College with a B.S. in Engineering Sciences and Physics. Her research interests include development of nanoscale optofluidic devices and their applications. Kaelyn is the recipient of a first-year QB3 Fellowship. In this video Kaelyn talks about her experimental research in nanoscale optofluidics to be done with Trestles LH laser. Reserve a spot in our femtosecond Ti:Sapphire training workshop in San Diego, California during summer 2011

Frequency-stabilized CW single-frequency ring Dye laser DYE-SF-007 pumped by DPSS DMPLH laser installed in the brand new group of Dr. Dajun Wang at the The Chinese University of Hong Kong. DYE-SF-077 features exceptionally narrow generation line width, which amounts to less than 100 kHz. DYE-SF-077 sets new standard for generation line width of commercial lasers. Prior to this model, the narrowest line-width of commercial dye lasers was as broad as 500 kHz - 1 MHz. It is necessary to note that the 100-kHz line-width is achieved in DYE-SF-077 without the use of an acousto-optical modulator, which, as a rule, complicates the design and introduces additional losses. A specially designed ultra-fast PZT is used for efficient suppression of radiation frequency fluctuations in a broad frequency range. DYE-SF-077 will be used in resaerch of Ultracold polar molecules, Bose-Einstein condensate and quantum degenerate Fermi gas and High resolution spectroscopy

Other News

Optical Society of Southern California meeting at UCSD OSSC 2011-04-27
Nd:YAG laser ordered by the University of Leon, UANL, Mexico
Wedge 50 Multipass Amplifier pumped with a Darwin-527-30-M DPSS Laser ordered by Hong Kong customer
New Trestles LH10-fs/CW femtosecond+CW laser ready for delivery to the University of California Santa Cruz
Trestles femtosecond Ti:Sapphire laser delivered to North Carolina State University
Del Mar Photonics sponsor IONS (International OSA Network of Students) conference IONS-NA-2 in Tucson, Arizona IONS-NA-2 website
Best talk and best poster awards at IONS-Moscow 2010 conference sponsored by Del Mar Photonics
Watch Del Mar Photonics videos!
Del Mar Photonics is now on Twitter!

Del Mar Photonics featured components

Del Mar Photonics continuously expands its components portfolio.

Solar Prisms for Concentrating Photovoltaic Systems (CPV) Solar cells made of compound semiconductors such as gallium arsenide are very expensive. Usually very small cells are installed and various means such as mirrors, lenses, prisms, etc..are used  to concentrate sunlight on the cells. Concentration photovoltaic technology (CPV) uses the solar radiation with an efficiency of 40%, double that of conventional solar cells Del Mar Photonics design custom Concentrating Photovoltaic Systems (CPV) and supply variety of the optical components for CPV such as solar prisms shown in the picture.   hexagonal light pipes, optical rods

Axicon Lens Axicon lens also known as conical lens or rotationally symmetric prism is widely used in different scientific research and application. Axicon can be used to convert a parallel laser beam into a ring, to create a non diffractive Bessel beam or to focus a parallel beam into long focus depth. Del Mar Photonics supplies axicons with cone angles range from 130° to 179.5° for use with virtually any laser radiation. We manufacture and supply axicons made from BK7 glass, fused silica and other materials. download brochure - request a quote

	Rutile (TiO2) coupling prisms Del Mar Photonics offers optical elements made of high quality synthetically grown Rutile Titanium Dioxide crystals. Rutile’s strong birefringency, wide transmission range and good mechanical properties make it suitable for fabrication of polarizing cubes, prisms and optical isolators. Boules having high optical transmission and homogeneity are grown by proprietary method. Typical boules have 10 - 15 mm in dia. and up to 25 mm length. Optical elements sizes - from 2 x 2 x 1 mm to 12.7 x 12.7 x 12.7 mm. Laser grade polish quality is available for finished elements. So far we the largest elements that we manufactured are 12 x15 x 5 mm, in which optical axis is parallel to 15 mm edge, 5 mm is along beam path, 12 x 15 mm faces polished 20/10 S/D, one wave flatness, parallelism < 3 arc.min. (better specs. available on request). more details - download brochure - request a quote
	Vacuum viewport Del Mar Photonics offer a range of competitively priced UHV viewports , Conflat, ISO or KF including a variety of coatings to enhance performance. Del Mar Photonics viewports are manufactured using advanced techniques for control of special and critical processes, including 100 percent helium leak testing and x-ray measurements for metallization control. Windows Materials include: Fused silica, Quartz , Sapphire , MgF2, BaF2, CaF2, ZnSe, ZnS, Ge, Si, Pyrex. Standard Viewing diameters from .55" to 1.94 ". Coating - a range of custom coatings can applied - which include - Single QWOT - Broad Band AR - V coatings - ITO - DLC (Diamond like coating) more details - request a quote
	Hydrogen Thyratrons are used in such devices as radars with different power levels, high-power pulsed technical, electrophysical, medical devices and lasers. Sophisticated design and high quality ceramic-metal envelope determines long lifetime and very accurate and reliable operation of hydrogen thyratrons under wide range of environmental conditions. Applications: - radars - pulsed  lasers power supplies - medical apparatus - electrophysical instrumentation Triggered Three-Electrode Spark Gap Switches are ceramic-metal sealed off gas discharge trigatron-type devices with a co-axial trigger electrode. These Gas Discharge Tubes contain no mercury and, due to an advanced design, feature high reliability and a long lifetime being operating under wide range of environmental conditions. Applications: - pulsed installation for processing materials - installations with plasma focus - pulse power supplies for lasers and other pulse equipment - medical apparatus such as lithotriptors and defibrillators - processing systems for petroleum wells

We are looking forward to hear from you and help you with your optical and crystal components requirements. Need time to think about it? Drop us a line and we'll send you beautiful Del Mar Photonics mug (or two) so you can have a tea party with your colleagues and discuss your potential needs.

Del Mar Photonics, Inc.
4119 Twilight Ridge
San Diego, CA 92130
tel: (858) 876-3133
fax: (858) 630-2376
Skype: delmarphotonics
sales@dmphotonics.com