High-peak-power optically-pumped AlGaInAs eye-safe laser with a silicon wafer as an output coupler: comparison between the stack cavity and the separate cavity | Zendy

C. P. Wen | Zendy; P. H. Tuan | Zendy; H. C. Liang | Zendy; C. H. Tsou | Zendy; K. W. Su | Zendy; K. F. Huang | Zendy; YihFan Chen | Zendy

Open Access

High-peak-power optically-pumped AlGaInAs eye-safe laser with a silicon wafer as an output coupler: comparison between the stack cavity and the separate cavity

Author(s) -

C. P. Wen,

P. H. Tuan,

H. C. Liang,

C. H. Tsou,

K. W. Su,

K. F. Huang,

YihFan Chen

Publication year - 2015

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.23.030749

Subject(s) - materials science , wafer , optics , stack (abstract data type) , output coupler , laser , optoelectronics , silicon , resonator , physics , computer science , programming language

An intrinsic silicon wafer is exploited as an output coupler to develop a high-peak-power optically-pumped AlGaInAs laser at 1.52 μm. The gain chip is sandwiched with the diamond heat spreader and the silicon wafer to a stack cavity. It is experimentally confirmed that not only the output stability but also the conversion efficiency are considerably enhanced in comparison with the separate cavity in which the silicon wafer is separated from other components. The average output power obtained with the stack cavity was 2.02 W under 11.5 W average pump power, corresponding to an overall optical-to-optical efficiency of 17.5%; the slope efficiency was 18.6%. The laser operated at 100 kHz repetition rate and the pulse peak power was 0.4 kW.

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