Method for controlling a temperature of a thermo-electric...

Details Method for controlling a temperature of a thermo-electric... Method for controlling a temperature of a thermo-electric...

2007-09-27

2009-10-27

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular temperature control

C372S036000, C257S675000, C257S712000, C062S003200

Reexamination Certificate

active

07609732

ABSTRACT:
The present invention is to provide a control algorithm of a thermo-electric cooler (TEC) for a laser diode (LD) where a rush current accompanied with the stepwise change of the target temperature of the TEC. First, the controller stops the TEC driver prior to the setting of the target temperature, and sets the present temperature of the LD. Subsequently, the controller gradually increases the reference temperature of the TEC in stepwise to the target temperature. Thus, the controller suppresses the rush current accompanied with the instantaneous increase of the reference temperature of the TEC.

REFERENCES:
patent: 5499258 (1996-03-01), Kawano et al.
patent: 5978395 (1999-11-01), Nomura
patent: 6891867 (2005-05-01), Serizawa
patent: 7075047 (2006-07-01), Noguchi et al.
patent: 2003-298524 (2003-10-01), None

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