The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 2015
Filed:
Sep. 16, 2013
Oclaro Japan, Inc., Kanagawa, JP;
OCLARO JAPAN, INC., Kanagawa, JP;
Abstract
Provided is an optical module in which a temperature of a semiconductor element to be subjected to temperature control is controlled to fall within a desired operating temperature range regardless of whether an environmental temperature is outside or inside the operating temperature range of the semiconductor element, and which is stably operated with low power consumption. A control sectiondetermines, based on the environmental temperature having a temperature range of from a first temperature to a second temperature, a target temperature from a predetermined operating temperature range of from a third temperature to a fourth temperature. The control unit, an ATC circuit, a TEC control IC, and a TECcontrol the temperature of a laser moduleto become the target temperature. The first temperature is lower than the third temperature, and the second temperature is higher than the fourth temperature.