Optical transceiver and optical communications product

Patent metadata

Field	Value
Publication number	US-9692516-B2
Application number	US-201615140286-A
Country	US
Kind code	B2
Filing date	Apr 27, 2016
Priority date	Apr 28, 2015
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

An optical transceiver, including a coupling assembly and a condensing assembly, is provided. The coupling assembly includes a first surface and a second surface; and multiple first lenses are disposed on the first surface. The condensing assembly includes a fastener, multiple filters, a reflector, and a light passing region; the condensing assembly is fastened to the second surface; the filters are optically aligned with the first lenses separately; the coupling assembly receives light of different wavelengths; and the light of different wavelengths enters the fastener through the multiple filters and is multiplexed or demultiplexed by the reflector and the filters, and multiplexed or demultiplexed light enters the coupling assembly through the light passing region. The optical transceiver provided in the present invention has advantages of low power consumption and high coupling efficiency.

First claim

What is claimed is:

1. An optical transceiver, comprising:
a coupling assembly; and
a condensing assembly;
wherein the coupling assembly comprises a first surface and a second surface that are oppositely disposed, wherein an angle is formed between the second surface and the first surface, and wherein multiple first lenses are disposed on the first surface;
wherein the condensing assembly comprises a fastener, multiple filters, a reflector, and a light passing region, wherein the fastener comprises a third surface and a fourth surface that are oppositely disposed, the multiple filters and the light passing region are disposed on the third surface, the light passing region is located on a side of the multiple filters, and the reflector is disposed on the fourth surface;
wherein the condensing assembly is fastened to the second surface;
wherein each of the multiple filters is optically aligned with a respective first lens of the multiple first lenses, wherein each of the multiple filters comprises a pair of light outgoing/incoming surfaces and a pair of side surfaces, wherein the pair of side surfaces are connected between the pair of light outgoing/incoming surfaces, the pair of light outgoing/incoming surfaces are attached to the second surface and the third surface, and the side surfaces of each filter are perpendicular to the first surface;
wherein the coupling assembly is configured to receive light of different wavelengths;
wherein the condensing assembly and the coupling assembly are configured such that the light of different wavelengths enters the fastener through the multiple filters and is multiplexed or demultiplexed by the reflector and the filters, and multiplexed or demultiplexed light enters the coupling assembly through the light passing region;
wherein a major axis of each first lens is perpendicular to the first surface; and
wherein the angle between the first surface and the second surface is within a range from 6° to 13°.

2. The optical transceiver according to claim 1 , wherein the pairs of light outgoing/incoming surfaces of the filters are arranged in a parallel manner, and the pairs of side surfaces of the filters are also arranged in a parallel manner.

3. An optical transceiver, comprising:
a coupling assembly; and
a condensing assembly;
wherein the coupling assembly comprises a first surface and a second surface that are oppositely disposed, wherein an angle is formed between the second surface and the first surface, and wherein multiple first lenses are disposed on the first surface;
wherein the condensing assembly comprises a fastener, multiple filters, a reflector, and a light passing region, wherein the fastener comprises a third surface and a fourth surface that are oppositely disposed, the multiple filters and the light passing region are disposed on the third surface, the light passing region is located on a side of the multiple filters, and the reflector is disposed on the fourth surface;
wherein the condensing assembly is fastened to the second surface;
wherein each of the multiple filters is optically aligned with a respective first lens of the multiple first lenses, wherein each of the multiple filters comprises a pair of light outgoing/incoming surfaces and a pair of side surfaces, wherein the pair of side surfaces are connected between the pair of light outgoing/incoming surfaces, the pair of light outgoing/incoming surfaces are attached to the second surface and the third surface, and the side surfaces of each filter are perpendicular to the first surface;
wherein the coupling assembly is configured to receive light of different wavelengths;
wherein the condensing assembly and the coupling assembly are configured such that the light of different wavelengths enters the fastener through the multiple filters and is multiplexed or demultiplexed by the reflector and the filters, and multiplexed or demultiplexed light enters the coupling assembly through the light passing region;
wherein a major axis of each first lens is perpendicular to the first surface;
wherein the optical transceiver further comprises an optical fiber accommodating member;
wherein the coupling assembly further comprises a total reflector and a second lens;
wherein the optical fiber accommodating member is configured to accommodate an optical fiber, wherein the optical fiber is optically aligned with the second lens; and
wherein the total reflector is configured to reflect, between the second lens and the condensing assembly, the light of different wavelengths;
wherein the coupling assembly and the optical fiber accommodating member are integrally formed;
wherein the optical fiber accommodating member is provided with an optical fiber jack, wherein the optical fiber jack is configured to accommodate the optical fiber; and
wherein the optical transceiver further comprises a ferrule, wherein the ferrule is located at an end face of the optical fiber and is opposite to the second lens, wherein the ferrule comprises a bevel, the bevel is disposed on a side, opposite to the second lens, of the ferrule, and the bevel is configured to reflect light passing through the second lens and incident on the ferrule towards a direction deviating from a major axis of the second lens, so as to prevent light reflected by the ferrule from returning to the second lens along an original light path.

4. The optical transceiver according to claim 3 , wherein the ferrule is made of a ceramic or metal material.

5. The optical transceiver according to claim 3 , wherein the major axis of the second lens intersects with the bevel, and an angle formed between the bevel and the major axis of the second lens is within a range from 82° to 86°.

6. An optical transceiver, comprising:
a coupling assembly; and
a condensing assembly;
wherein the coupling assembly comprises a first surface and a second surface that are oppositely disposed, wherein an angle is formed between the second surface and the first surface, and wherein multiple first lenses are disposed on the first surface;
wherein the condensing assembly comprises a fastener, multiple filters, a reflector, and a light passing region, wherein the fastener comprises a third surface and a fourth surface that are oppositely disposed, the multiple filters and the light passing region are disposed on the third surface, the light passing region is located on a side of the multiple filters, and the reflector is disposed on the fourth surface;
wherein the condensing assembly is fastened to the second surface;
wherein each of the multiple filters is optically aligned with a respective first lens of the multiple first lenses, wherein each of the multiple filters comprises a pair of light outgoing/incoming surfaces and a pair of side surfaces, wherein the pair of side surfaces are connected between the pair of light outgoing/incoming surfaces, the pair of light outgoing/incoming surfaces are attached to the second surface and the third surface, and the side surfaces of each filter are perpendicular to the first surface;
wherein the coupling assembly is configured to receive light of different wavelengths;
wherein the condensing assembly and the coupling assembly are configured such that the light of different wavelengths enters the fastener through the multiple filters and is multiplexed or demultiplexed by the reflector and the filters, and multiplexed or demultiplexed light enters the coupling assembly through the light passing region;
wherein a major axis of each first lens is perpendicular to the first surface; and
wherein the coupling assembly is provided with a groove and multiple dispensing grooves, wherein the multiple dispensing grooves are distributed at two sides of the groove and are in communication with the groove, wherein the multiple

Assignees

• Huawei Tech Co Ltd

Inventors

• Zhou Chuang
• Hu Chihao
• Liu Heliang

Classifications

• G02B6/4246

  Bidirectionally operating package structures · CPC title

• G02B6/29367

  Zigzag path within a transparent optical block, e.g. filter deposited on an etalon, glass plate, wedge acting as a stable spacer · CPC title

• G02B6/4215

  the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers (G02B6/4246 takes precedence) · CPC title

• G02B6/4255

  Moulded or casted packages · CPC title

• G02B6/4206

  Optical features (G02B6/4207, G02B6/421 take precedence) · CPC title