Characteristics of a high-power picosecond mid-IR parametric generator/amplifier tunable between 1.5 and 3.2 μm

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F19%3A00338791" target="_blank" >RIV/68407700:21340/19:00338791 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1117/12.2520215" target="_blank" >http://dx.doi.org/10.1117/12.2520215</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2520215" target="_blank" >10.1117/12.2520215</a>

Result language

angličtina

Original language name

Characteristics of a high-power picosecond mid-IR parametric generator/amplifier tunable between 1.5 and 3.2 μm

Original language description

The usage of coherent radiation in the mid-infrared (mid-IR) wavelength range (2 - 8 mu m) covers a wide spectrum of applications in many different fields. To satisfy the demand for a high-power, picosecond mid-IR source, we are developing an optical parametric system tunable between 1.45 and 3.5 mu m in wavelength. The pumping of the system is provided by an in-house built Yb:YAG thin-disk laser, delivering 80 W of average power at 93 kHz pulse repetition rate, 1030 nm wavelength and similar to 1.3 ps pulse duration. The optical parametric system consists of a double-pass optical parametric generator (OPG) based on a periodically poled lithium niobate. By utilizing four periods of poling and temperature tuning, wavelength tunability range is from 1.45 to 3.5 mu m. Maximum signal output power was around 85 mW at 1850 nm wavelength at 2 W pump power. Subsequent amplification of the signal generated in the OPG stage takes place in an optical parametric amplifier (OPA), which consists of a pair of walk-off compensating KTA crystals, pumped by up to 50 W average power. Maximum output signal and idler sum power after the OPA stage was 8.4 W. The wavelength tunability of the amplifier spans from 1.5 to 3.2 mu m. Further increase in the tunability range as well as gap free tuning is currently crystal mount-limited.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20201 - Electrical and electronic engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proc. SPIE 11033, High-Power, High-Energy, and High-Intensity Laser Technology IV

ISBN

978-1-5106-2732-1

ISSN

0277-786X

e-ISSN

1996-756X

Number of pages

13

Pages from-to

—

Publisher name

SPIE

Place of publication

Bellingham

Event location

Praha

Event date

Apr 1, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000483017000012