Share Email Print

Proceedings Paper

High power, tunable, ultrafast yellow laser using cascaded second harmonic generation of mid-IR Cr2+:ZnS laser in MgO:PPLN crystals (Conference Presentation)

Paper Abstract

We report on efficient, two stage single-pass second harmonic generation of ultrafast Cr2+:ZnS laser with spectral bandwidth of 138 nm centered at ~2360 nm and pulse width of ~43 fs at a repetition rate of 80 MHz into tunable yellow radiation across 577 - 589 nm in multi-grating MgO:PPLN crystals. A maximum average output power ~940 mW at 589 nm wavelength with a single-pass conversion efficiency as high as 41% was achieved. The yellow radiation has a spectral bandwidth of 2 nm and pulse-width of ~913 fs in absence of any pulse compression with a time-bandwidth product of 1.58.

Paper Details

Date Published: 9 March 2020
Proc. SPIE 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX, 1126411 (9 March 2020); doi: 10.1117/12.2545650
Show Author Affiliations
Anirban Ghosh, Physical Research Lab. (India)
Deepika Yadav, Physical Research Lab. (India)
Ravi Kiran Saripalli, Physical Research Lab. (India)
Goutam K. Samanta, Physical Research Lab. (India)

Published in SPIE Proceedings Vol. 11264:
Nonlinear Frequency Generation and Conversion: Materials and Devices XIX
Peter G. Schunemann; Kenneth L. Schepler, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?