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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:1889501
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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.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0021449
OSTI ID:
1889501
Alternate ID(s):
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 AmericaCopyright Statement
Country of Publication:
United States
Language:
English

References (10)

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

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