Coherent light generators – Particular resonant cavity – Distributed feedback
Reexamination Certificate
2007-07-24
2007-07-24
Harvey, Minsun Oh (Department: 2828)
Coherent light generators
Particular resonant cavity
Distributed feedback
C372S050110
Reexamination Certificate
active
10714016
ABSTRACT:
There are provided a bi-directional transceiver module and a method for driving the same. The bi-directional transceiver module includes a 1.3 μm Distributed Bragg Reflection Laser Diode (DBR LD) including an active layer which performs light-emission in response to a light at 1.3 μm and a DBR mirror formed near the active layer. The DBR mirror is formed to prevent an upstream signal emerging from the 1.3 μm DBR LD from being deleted by a PD. A monitoring PD and a PD for detecting an optical signal are integrated and mounted behind the DBR mirror using a butt-joint method. The 1.3 μm DBR LD, the monitoring PD, and the PD for detecting the optical signal are electrically isolated by insulated areas. To drive the bi-directional transceiver module, a forward bias (+) is applied to a p-electrode formed on the 1.3 μm DBR LD, a backward bias (−) is applied to p-electrodes formed on the monitoring PD and the PD for detecting the optical signal, and a n-electrode as a common electrode is grounded.
REFERENCES:
patent: 4829535 (1989-05-01), Utaka
patent: 5325382 (1994-06-01), Emura et al.
patent: 6104739 (2000-08-01), Hong et al.
Kim Ki Soo
Kim Sung Bock
Sim Eundeok
Blakely & Sokoloff, Taylor & Zafman
Electronics and Telecommunications Research Institute
Harvey Minsun Oh
Nguyen Tuan N.
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