High-power long-wavelength large optical cavity (LOC) laser diodes

Ronghui Li; Jingchang Zhong; Baoren Zhu; Yingjie Zhao; Yi Qu

doi:10.1117/12.208450

28 April 1995 High-power long-wavelength large optical cavity (LOC) laser diodes

Ronghui Li, Jingchang Zhong, Baoren Zhu, Yingjie Zhao, Yi Qu

Proceedings Volume 2382, Laser Diodes and Applications; (1995) https://doi.org/10.1117/12.208450
Event: Photonics West '95, 1995, San Jose, CA, United States

Abstract

A gain-guided high-power 1.55 micrometers large optical cavity (LOC) laser structure was successfully prepared based on considerations of laser loss mechanisms such as auger electron recombination, carrier leakage over the heterobarrier, inter-valence-band absorption and so forth. The structure was grown by a unique liquid phase epitaxy (LPE) and was modified by growing an intrinsic InGaAsP waveguiding layer which replaced its n-type counterpart as in usual LOC devices and provided a higher temperature stability than that of conventional DH lasers. Using the LOC structure, we have obtained 1.55 micrometers laser diodes with threshold currents comparable to commercial lasers (J_th < 2.7 KA/cm²) but with the characteristic temperature T_o near to those of GaAs-AlGaAs lasers (140 K). Especially, we have attained the peak output power up to higher than 2 W per facet in pulsed operation at room temperature.

Citation Download Citation

Ronghui Li, Jingchang Zhong, Baoren Zhu, Yingjie Zhao, and Yi Qu "High-power long-wavelength large optical cavity (LOC) laser diodes", Proc. SPIE 2382, Laser Diodes and Applications, (28 April 1995); https://doi.org/10.1117/12.208450

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