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Small form factor all-polymer optical device with integrated dual beam path based on total internal reflection optical turn

A technology of total internal reflection and optical path, applied in the coupling of optical waveguides, optics, optical components, etc., can solve the problem of expensive silicon optical benches

Inactive Publication Date: 2008-08-06
BROADCOM INT PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Silicon optical tables with built-in optical turning mirrors are expensive even when purchased in large quantities

Method used

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  • Small form factor all-polymer optical device with integrated dual beam path based on total internal reflection optical turn
  • Small form factor all-polymer optical device with integrated dual beam path based on total internal reflection optical turn
  • Small form factor all-polymer optical device with integrated dual beam path based on total internal reflection optical turn

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Embodiment Construction

[0013] FIG. 1 is a schematic diagram illustrating the structure and function of a small all-polymer monolithic optical module according to an embodiment of the present invention. Optical module 110 may integrally include, among other optical elements, any combination of: total internal reflection interface 111 capable of redirecting light beams for, for example, a 90-degree turn; wedge-shaped air / polymer / air multi-interface beam splitter 112, which can generate multiple light paths and redirect this light path; focusing lenses 116, 117, which can focus the light beam onto a detector, for example; fiber optic lens 118, which can focus the light beam into an optical fiber; and collimating lens 119, which can focus the light beam onto a detector Scattered beams such as laser output beams are converted into collimated beams. In addition to the aforementioned optical elements meeting optical size and surface finish tolerances, integrated optical module 110 also includes non-optical...

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Abstract

A monolithic optical module (110) of injection-molded high temperature polymeric resin combines an optical turn of typically 90 degrees together with dual or triple beam paths. No additional piece parts are necessary for achieving the optical turn, since this occurs by total internal reflection (TIR), and no additional piece parts are necessary for dual monitoring, which is realized by means of an air-gap functioning as a dual beam-splitter plate (112). The monolithic optical module further includes integrally surfaces for accurate alignment of the module with external optical elements, and can additionally include integral optical elements, for example lenses and this film coatings.

Description

technical field [0001] The present invention relates to optical devices, and more particularly, to small form factor all-polymer optical devices with integrated dual optical paths based on total internal reflection optical steering. Background technique [0002] In the optical path of a vertical-cavity surface-emitting laser (VCSEL) for monitoring, tilted partial mirrors present a complex assembly with various parts. Silicon optical tables with built-in optical turning mirrors are expensive, even when purchased in large quantities. The monitoring optical circuit used in one prior art microphotonic transmitter device consists of separately mounted single-piece optical components (see U.S. Patent No. 5,937,114 to Fisher et al., issued August 10, 1999) Contents of the invention [0003] The present invention is directed to a system and method for converting typically 90-degree optical Steering is combined with dual or triple optical paths. Since the optical steering is pro...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/42
CPCG02B6/4246G02B6/4214G02B6/4227G02B6/4206
Inventor 埃里克·万克伊勒阿德里安努·J·P.·范哈斯特恩
Owner BROADCOM INT PTE LTD