Optical Components and Optical Modules

A technology of optical components and photoelectric conversion elements, applied in the field of optical modules, can solve the problems of large peak value and low 3dB cut-off frequency

Active Publication Date: 2021-05-25
日本ルメンタム株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

like Figure 17 As shown, the peak value of the 4th channel is large, and the 3dB cut-off frequency is low, so the receiving sensitivity characteristic is saturated (floor)

Method used

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  • Optical Components and Optical Modules
  • Optical Components and Optical Modules
  • Optical Components and Optical Modules

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0042] figure 1 It is an exploded perspective view of the optical module 1 according to the first embodiment. The optical module 1 is built with two optical components. Specifically, it is an optical sending assembly 2 (TOSA: Transmitter Optical Sub-Assembly) for converting electrical signals into optical signals and an optical receiving assembly 4 (ROSA: Transmitter Optical Sub-Assembly) for converting optical signals into electrical signals Receiver Optical Sub-Assembly, light receiving sub-assembly). On the transmitting side, the electrical signal transmitted from the main substrate (not shown) is passed to the circuit substrate in the optical module 1 via the electrical interface 6 to be converted into an optical signal, and the optical signal is transmitted through the optical interface 8 . On the receiving side, an optical signal is received, and an electrical signal is output to a main-side substrate (not shown). The optical module 1 has a housing 9 composed of a pa...

no. 2 Embodiment approach

[0084] Figure 11 It is a perspective view of the light-receiving element array 230 according to the second embodiment viewed from the front side. The light-receiving element array 230 according to the second embodiment has the same light-receiving element as that according to the first embodiment, except that the arrangement of each light-receiving element 22 and the connection wiring connecting each light-receiving element 22 to the element terminal group 24 are different. The structure of the array 23 is the same, and therefore, repeated descriptions are omitted. Here, a configuration different from that of the light receiving element array 23 according to the first embodiment will be described.

[0085] In the light receiving element array 230 , a first light receiving element 22 a , a second light receiving element 22 b , a third light receiving element 22 c , and a fourth light receiving element 22 d are sequentially formed on the semi-insulating Fe-doped InP substrate ...

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Abstract

In the present invention, in an optical module having a plurality of channels, among the leads used for connecting each of the plurality of channels, the lead length of the channel whose lead length can be the longest is made shorter. The optical module includes: a photoelectric conversion device having a plurality of element terminal groups, an IC chip and a plurality of element terminal groups, and one of the plurality of element terminal groups and the plurality of IC terminal groups is provided with a first connection terminal and a second connection terminal respectively. In the two-terminal structure of the connection terminal, the other of the plurality of element terminal groups and the plurality of IC terminal groups is a three-terminal structure, and both ends of the plurality of element terminal groups and both ends of the plurality of IC terminal groups are When the two ends located on the inner side have a two-terminal structure, respectively, in the two-terminal structure at both ends, the first connection terminal is arranged on the outside of the second connection terminal, and both ends on the outside are respectively two-terminal structures In the case of , in the two-terminal structure at both ends, the first connection terminal is arranged on the inner side of the second connection terminal.

Description

technical field [0001] The present invention relates to an optical component and an optical module equipped with the optical component. Background technique [0002] The optical module used for optical communication is an optical module that has one or more optical components inside, and the one or more optical components have a transmission function and / or a reception function. In recent years, an array-type light-receiving device including a plurality of light-receiving elements has been used as a light-receiving module housed in an optical module. A light-receiving module including an array-type light-receiving device including, for example, four light-receiving elements will be described below. Figure 13 It is a partial exploded perspective view of the light receiving module 200 accommodated in the optical module related to the prior art. Figure 13 The array-type light-receiving device 201 of the shown light-receiving module 200 is a 4-channel array-type light-receivin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L25/04H01L27/142
CPCH01L25/041H01L27/142G02B6/4249G02B6/4279G02B6/428H01L27/1443H01L31/10H01L2224/4917Y02E10/50H01L31/02005H04B10/691
Inventor 丰中隆司滨田博
Owner 日本ルメンタム株式会社
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