Optical: systems and elements – Optical amplifier – Particular active medium
Reexamination Certificate
2011-04-05
2011-04-05
Bolda, Eric (Department: 3663)
Optical: systems and elements
Optical amplifier
Particular active medium
C257S014000, C257S015000
Reexamination Certificate
active
07920322
ABSTRACT:
Provided are a reflective semiconductor optical amplifier (R-SOA) and a superluminescent diode (SLD). The R-SOA includes: a substrate; an optical waveguide including a lower clad layer, an active layer independent of the polarization of light, and an upper clad layer sequentially stacked on the substrate, the optical waveguide comprising linear, curved, and tapered waveguide areas; and a current blocking layer formed around the optical waveguide to block a flow of current out of the active layer, wherein the linear and curved waveguide areas have a single buried hetero (BH) structure, and the tapered waveguide area has a dual BH structure.
REFERENCES:
patent: 5636237 (1997-06-01), Terakado et al.
patent: 6310720 (2001-10-01), Walker et al.
patent: 6487007 (2002-11-01), Morito
patent: 7046435 (2006-05-01), Shin et al.
patent: 2005/0084991 (2005-04-01), Lee et al.
patent: 2005/0105171 (2005-05-01), Shin et al.
patent: 2005/0185264 (2005-08-01), Shin et al.
patent: 8-37341 (1996-02-01), None
patent: 10-98231 (1998-04-01), None
patent: 10-2005-0082654 (2005-08-01), None
Kakitsuka et al. “Influence of Buried Structure on Polarization Sensitivity in Strained Bulk Semiconductor Optical Amplifiers”, IEEE Journal of Quantum Electronics, vol. 38, No. 1, pp. 85-92 (Jan. 2002).
“High Performance 1.55 μM Polarisation-Insensitive Semiconductor Optical Amplifier Based on Low-Tensile-Strained Bulk GaInAsP” by J. Y. Emery et al., Electronics Letters, vol. 33, No. 12, pp. 1083-1084, Jun. 5, 1997.
“Narrow Beam 1.3 μM Superluminescent Diode With Butt-Jointed Selectively Grown Spot Size Converter” by H. Okamoto et al., Electronics Letters, vol. 33, No. 9, pp. 811-812, Apr. 24, 1997.
Baek Yongsoon
Oh Kwang-Ryong
Oh Su Hwan
Park Sahng-gi
Bolda Eric
Electronics and Telecommunications Research Institute
Rabin & Berdo P.C.
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