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Cooled laser module

A technology of thermoelectric cooling and optical fiber, which is applied in the direction of optics, light guides, optical components, etc., and can solve problems such as increasing costs

Inactive Publication Date: 2011-05-04
EMCORE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the addition of the mirror and the wedge also increases the cost

Method used

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  • Cooled laser module
  • Cooled laser module
  • Cooled laser module

Examples

Experimental program
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Embodiment Construction

[0019] Details of the invention will now be described, including exemplary aspects and embodiments thereof.

[0020] remember this, figure 1 A coaxial cooled laser module is shown having a TO cladding 10 and a fiber pigtail module 12 (having a proximal end and a distal end) for aligning the optical transmission axis between the TO cladding 10 and the optical fiber .

[0021] The TO can 10 consists of a TO header subassembly 14 as shown in FIG. 2( a ) and a sealing cap 16 with a flat window 18 as shown in FIG. 2( b ). In this embodiment, the flat window 18 is inclined by a few degrees from the axis of the laser beam to reduce back reflections, but this is not essential.

[0022] As shown in FIG. 2( a ), the TO header subassembly 14 includes a TO header 20 having a number of electrical conductor pins 22 extending through the TO header 20 . The TO header subassembly 14 also includes a thermoelectric cooler (TEC) 24 and an optoelectronics assembly 26 that supports an active LED...

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Abstract

The present invention relates to a cooled laser module. An optoelectronic device includes a header having a plurality of pins extending therethrough; a thermo-electric cooling device mounted adjacent to a side of the header; and an optoelectronic assembly mounted on the thermo-electric cooling device. The optoelectronic assembly includes a light emitting device operable to emit an optical signal in response to an electric signal received by at least one of the plurality of pins, and a lens assembly operable to receive at least some of the light emitted by the light emitting device, the lens assembly having a lens. A cap substantially encloses the thermo-electric cooling device and the optoelectronic assembly. The cap has a window operable to transmit light emitted by the optoelectronic assembly. The lens is the only optical component in the lens assembly.

Description

technical field [0001] The present invention relates to optoelectronic converters, and more particularly to an integrated laser assembly or module providing a communication interface between a computer or communication unit having an electrical connector or interface and an optical fiber such as used in a fiber optic communication link. Background technique [0002] Various optoelectronic transceivers are known in the art. Such devices typically include an optical transmitter portion, which converts the electrical signal into a modulated light beam coupled to an optical fiber, and a receiver portion, which receives the optical signal from the optical fiber and converts it into an electrical signal. Traditionally, the optical receiver section contains an optical assembly to focus or direct the light from the optical fiber onto a photodetector, which in turn is connected to an amplifier / limiter on the circuit board. The photodetectors or photodiodes are typically packaged in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/42
CPCG02B6/4201G02B6/4263G02B6/4267G02B6/4271G02B6/4279G02B6/4285G02B6/4286
Inventor 苗荣升
Owner EMCORE INC