Optical waveguides – With optical coupler – Input/output coupler
Patent
1989-12-01
1991-10-15
Dzierzynski, Paul M.
Optical waveguides
With optical coupler
Input/output coupler
372102, 359487, 359566, 359638, G02B 2710, G02B 2728, G02B 2742
Patent
active
050568876
ABSTRACT:
In a device for mixing a first input optical signal and a second input optical signal, a polarization beam splitter receives the first and second input optical signals. Each of the first and second input optical signals is separated into polarized optical signals having different polarization planes. Each polarized optical signal is divided into divided optical signals being transmitted in directions with an acute crossed angle in a mixer which mixes the divided optical signals corresponding to the first and second input optical signals. The mixed optical signals are then focused.
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Shibutani et al., "Polarization Diversity Coherent Optical Receiver with a Balanced Receiver Configuration", 14th European Conference on Optical Communications, pp. 151-154, not dated.
Tzeng et al., "Measurement of Excess Sensitivity Penalty of a Four-Diode Polarization Diversity Coherent Receiver", Electronics Letters, vol. 24, No. 6, 17 Mar. 1988, pp. 330 to 332.
Nishihara et al., "Holocoupler: A Novel Coupler for Optical Circuits", IEEE Journal of Quantum Electronics, Sep. 1975, pp. 794 to 796.
Dzierzynski Paul M.
Kabushiki Kaisha Toshiba
Lerner Martin
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