Open AccessGeneration of blue light by sum-frequency generation of a spectrally combined broad-area diode laser array
Author(s) -
Zhihong Zhu,
Menghua Jiang,
Haoyang Yu,
Hui Yang,
Hong Lei,
Qiang Li
Publication year - 2016
Publication title -
optics letters/optics index
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.41.004712
Subject(s) - optics , laser , sum frequency generation , diode , materials science , common emitter , laser beam quality , optoelectronics , wavelength , beam (structure) , semiconductor laser theory , laser diode , nonlinear optics , laser beams , physics
We present the first demonstration of a spectrally beam combined diode laser array with subsequent sum-frequency generation (SFG). The combined beam of the diode laser array with 19 emitters has the same beam quality as a single emitter, and the wavelength of each emitter is different. The blue light is generated by sum-frequency mixing of pairs of emitters in the diode laser array. About 93 mW of blue light power is produced using a PPLN crystal. Compared with the SFG of two emitters, this approach can increase the number of lasers participating in nonlinear frequency conversion. Thus, it can enhance the available power.