Del Mar Photonics featured customer: Los Alamos National Laboratory
High-temporal contrast using low-gain optical parametric
amplification
Rahul C. Shah, Randall P. Johnson,* Tsutomu Shimada, Kirk A. Flippo,
Juan C. Fernandez, and B. M. Hegelich
Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
Authors demonstrate the use of low-gain optical parametric amplification
(OPA) as a means of improving temporal
contrast to a detection-limited level 10−10. 250
µJ, 500 fs pulses of 1053 nm are frequency doubled and
subsequently restored to the original wavelength by OPA with >10% efficiency.
Author used Rincon third-order autocorrelator to measure the temporal contrast. (full article)
Rincon cross-correlator
Rincon brochure - Rincon manual - Rincon software - Example of the measurement obtained
Third-order cross-correlator RINCON is a device developed for measuring and
determining pulse pedestal, pre- and post-pulses and amplified spontaneous
emission in a high dynamic range. It is based on third-order cross-correlation
technique and provides information about the cross-correlation function of pulse
intensity in fs scale.
(Color online) Temporal contrast measurement of both unamplified signal and
idler with calculated cube of signal. Inset shows larger temporal range: a,
known artifact;
e, etalon reflection; u, unknown peak, presumed to be artifact. (b) Measured
spectra.
Del Mar Photonics - Rincon cross correlator brochure
Rincon Third Order Cross-Correlator (TOCC)
Each Rincon is optimized for customer laser system and required range of
measurements.
The complete setup geometry, dimensions of non-linear crystals and some essential optics
are all function of laser parameters and user-chosen tradeoffs between
sensitivity, time resolution, time window, overall size etc.
We need the following information to set the tradeoffs and get all critical
data necessary for the design which is optimized for your system:
1. What is wavelength of you laser system?
2. What is the repetition rate?
3. What is the normal pulse energy and beam diameter?
4. Is the laser pulse chirped?
5. What is the spectral bandwidth?
6. What is the pulsewidth?
7a. What is the expected (or estimated) contrast ratio as a function of delay from peak
7b. What is the minimum necessary contrast ratio as a function of delay from peak
8. What is beam quality (i.e. beam divergence relative to diffraction-limited one)
The third order cross-correlator Rincon has been specifically developed for
measuring a wide array of output parameters from ultrafast laser systems
including: contrast ratio of laser pulses, determining pulse pedestal, pre- and
post-pulses, and amplified spontaneous emission (ASE) in femtosecond systems. It
also provides information about the third-order cross-correlation function of
pulse intensity on a femtosecond scale and can be used for alignment of high
power femtosecond lasers.
Cross-correlator includes opto-mechanical assembly and electronics with USB
interface. System is easy to operate and includes a full set of user friendly
software tools for data collection and analysis.
To request a quote for Rincon cross-correlator please e-mail sales@dmphotonics.com with detailed answers to the questions above.
Product Data Sheets
Del Mar Photonics Product brochures - Femtosecond products data sheets (zip file, 4.34 Mbytes) - Del Mar Photonics
Send us a request for standard or custom ultrafast (femtosecond) product
Pulse
strecher/compressor
Avoca SPIDER system
Buccaneer femtosecond
fiber lasers with SHG Second Harmonic Generator
Cannon Ultra-Broadband Light
Source
Cortes Cr:Forsterite
Regenerative Amplifier
Infrared
cross-correlator CCIR-800
Cross-correlator Rincon
Femtosecond Autocorrelator
IRA-3-10
Kirra Faraday Optical Isolators
Mavericks femtosecond
Cr:Forsterite laser
OAFP optical attenuator
Pearls femtosecond fiber laser
(Er-doped fiber, 1530-1565 nm)
Pismo pulse picker
Reef-M femtosecond scanning
autocorrelator for microscopy
Reef-RTD scanning
autocorrelator
Reef-SS single shot
autocorrelator
Femtosecond Second Harmonic Generator
Spectrometer ASP-100M
Spectrometer ASP-150C
Spectrometer ASP-IR
Tamarack and Buccaneer
femtosecond fiber lasers (Er-doped fiber, 1560+/- 10nm)
Teahupoo femtosecond Ti:Sapphire regenerative amplifier
Femtosecond
third harmonic generator
Tourmaline femtosecond fiber
laser (1054 nm)
Tourmaline TETA Yb
femtosecond amplified laser system
Tourmaline Yb-SS
femtosecond solid state laser system
Trestles CW Ti:Sapphire
laser
Trestles femtosecond
Ti:Sapphire laser
Trestles Finesse
femtosecond lasers system integrated with DPSS pump laser
Wedge Ti:Sapphire multipass amplifier
Del Mar Photonics, Inc.
4119 Twilight Ridge
San Diego, CA 92130
tel: (858) 876-3133
fax: (858) 630-2376
Skype: delmarphotonics
sales@dmphotonics.com
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