Optical waveguides – With disengagable mechanical connector – Optical fiber to a nonfiber optical device connector
Patent
1997-06-17
1998-12-08
Palmer, Phan T.H.
Optical waveguides
With disengagable mechanical connector
Optical fiber to a nonfiber optical device connector
385 88, G02B 636
Patent
active
058482105
ABSTRACT:
A temperature controlled optical coupling device of the present invention includes an optical coupling substrate (2) carrying metal electrodes (1) on its rear. An electrode substrate (6) carries metal electrodes (3) on its front. A plurality of thermoelectric elements (4) are also carried on the front of the electrode substrate (6) and connected to leads (5). A light emitting element or similar optical element (8) and an optical fiber (7) are mounted on the substrate (2) with their optical axes aligned with each other. Also mounted on the substrate (2) is a thermistor (9) for temperature measurement. The thermoelectric elements (4) are directly connected to the metal electrodes (1) and are connected in series by the metal electrodes (1) and metal electrodes (3). When a voltage is applied between leads (5), a current flows through the thermoelectric elements (4). As a result, the substrate (2) is selectively heated or cooled due to the Peltier effect, controlling the temperature of the thermoelectric elements (4). The structure is small size and low cost and needs a minimum of power for temperature control.
REFERENCES:
patent: 5355386 (1994-10-01), Rothman et al.
patent: 5717803 (1998-02-01), Yoneda et al.
European Search Report dated Oct. 15, 1997.
NEC Corporation
Palmer Phan T.H.
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