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High power picosecond green and deep ultraviolet generations with an all-fiberized MOPA

Journal Article · · Optics Letters
DOI:https://doi.org/10.1364/ol.472644· OSTI ID:2421936
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We demonstrate high power picosecond green and deep ultraviolet (DUV) lasers based on an all-fiberized master oscillator power amplifier (MOPA). The main power amplifier is fabricated with a highly Yb-doped large mode area (LMA) silicate glass fiber. It delivers 75.2-W laser output at 1029 nm with a pulse repetition rate of 10 MHz and a pulse duration of 70 ps. With a lithium triborate (LBO) crystal, a 43.0-W green output at 514.5 nm has been achieved with a pulse duration of 55 ps. With a caesium lithium borate (CLBO) crystal, a 14.5-W picosecond DUV output at 257 nm has been generated, which is the highest power for the all-fiber based DUV laser, to the best of our knowledge.

Research Organization:
AdValue Photonics, Inc., Tucson, AZ (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
SC0021449
OSTI ID:
2421936
Journal Information:
Optics Letters, Journal Name: Optics Letters Journal Issue: 19 Vol. 47; ISSN 0146-9592; ISSN OPLEDP
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English

References (10)

High-power, high-efficiency, all-fiberized-laser-pumped, 260-nm, deep-UV laser for bacterial deactivation journal December 2021
Picosecond green and deep ultraviolet pulses generated by a high-power 100  kHz thin-disk laser journal November 2016
High resolution scanning microanalysis on material surfaces using UV femtosecond laser induced breakdown spectroscopy journal May 2015
56 kW peak power, nanosecond pulses at 274 nm from a frequency quadrupled Yb-doped fiber MOPA journal March 2018
High-average-power femtosecond laser at 258  nm journal July 2017
Sub-micron patterning of solid materials with ultraviolet femtosecond pulses journal September 2004
Lithography gets extreme journal January 2010
Deep-UV Laser-Based Fluorescence Lifetime Imaging Microscopy of Single Molecules journal May 2004
High-power, high-repetition-rate performance characteristics of β-BaB_2O_4 for single-pass picosecond ultraviolet generation at 266 nm journal October 2015
Yb-fiber-laser-based, 18  W average power, picosecond ultraviolet source at 266  nm journal May 2015

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Optics