Dual wavelength operation of the GaSb-based Y-branch distributed Bragg reflector lasers near 2.1 μ m
Dual wavelength operation of the GaSb-based Y-branch distributed Bragg reflector lasers near 2.1 μ m
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2.1 μ m 附近 GaSb 基 Y 分支分布式布拉格反射激光器的双波长操作
DOI：
10.1088/1361-6641/ab63bc
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发表时间：
2020
影响因子：
1.9
通讯作者：
Belenky, G
中科院分区：
文献类型：
--
作者：
Jiang, J;Shterengas, L;Hosoda, T;Stein, A;Belyanin, A;Kipshidze, G;Belenky, G
设计并制造了在 2.1 μm 附近的两个波长同时工作的 GaSb 二极管激光器。 Y 分支器件使用六阶分布式布拉格反射器 (DBR) 来提供光谱选择性反馈。激光活性区域包含两个不对称量子阱，允许两个最低电子（e1 和 e2）和顶部空穴（hh1）子带之间的光学跃迁。激光发射线与 e1-hh1 和 e2-hh1 光学跃迁松散匹配，间隔对应于～ 3.1 THz。 10 μm 宽深蚀刻直脊 DBR 激光器表现出稳定的单模操作，输出功率超过 50 mW。
The GaSb-based diode lasers operating simultaneously at two wavelengths near 2.1 μm have been designed and fabricated. The Y-branch devices used the 6th order distributed Bragg reflectors (DBR) to provide spectrally selective feedback. The laser active region contained two asymmetric quantum wells with allowed optical transitions between two lowest electron (e1 and e2) and top hole (hh1) subbands. The laser emission lines loosely matched the e1-hh1 and e2-hh1 optical transitions with separation corresponding to∼ 3.1 THz. The 10 μm wide deeply etched straight ridge DBR lasers demonstrated stable single mode operation with more than 50 mW of output power.