1.5 [micro sign]m wavelength distributed reflector lasers with vertical grating
2001; Institution of Engineering and Technology; Volume: 37; Issue: 13 Linguagem: Inglês
10.1049/el
ISSN1350-911X
AutoresJ. Wiedmann, Koji Ebihara, H.C. Kim, B. Chen, M. Ohta, Kensuke Matsui, S. Tamura, Jong‐In Shim, Shigehisa Arai,
Tópico(s)Advanced Fiber Optic Sensors
ResumoA 1.5 µm wavelength distributed reflector laser, consisting of a distributed Bragg reflector rear facet and a distributed feedback region, was realised using deep-etching technology. A low threshold current of Ith = 12.4 mA and a high differential quantum efficiency of ηd = 42% from the front facet was achieved with a submode suppression ratio of 33 dB (I = 2.4Ith) for a fifth-order grating, 220 µm long and 6 µm wide device at room temperature.
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