Optical waveguide switch having peltier junction control element

Details Optical waveguide switch having peltier junction control element Optical waveguide switch having peltier junction control element

1998-05-28

2000-12-19

Henry, Jon

Optical waveguides

With optical coupler

Switch

385 1, 356345, G02B 626, G02F 1025, G01B 102

Patent

active

061636339

ABSTRACT:
A optical switch comprising: a substrate; and a Mach-Zehnder interferometer circuit provided on the substrate, the Mach-Zehnder interferometer circuit comprising two directional couplers and two optical transmission lines for connecting the directional couplers to each other; elements having Peltier effect provided respectively on the two optical transmission lines; and energizing means for energizing the elements in such a manner that heat is generated from one of the elements with absorption of heat being created in the other element. By virtue of the above construction, the optical switch can realize low power consumption, low extinction ratio, and low crosstalk.

REFERENCES:
patent: 5016958 (1991-05-01), Booth
patent: 5117470 (1992-05-01), Inoue et al.
Office Action Issued by the Japanese Patent Office on Dec. 1, 1998 and a Translation thereof.

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