Optical modulator
US-2019025612-A1 · Jan 24, 2019 · US
Optical modulator
US10416527B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10416527-B2 |
| Application number | US-201815927496-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 21, 2018 |
| Priority date | Mar 23, 2017 |
| Publication date | Sep 17, 2019 |
| Grant date | Sep 17, 2019 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An optical modulator includes an optical modulation element that is accommodated in a housing. A plurality of lead pins, which are electrically connected to the optical modulation element through wire bonding, are fixed to a lateral wall of the housing. Each of the plurality of lead pins includes a portion that protrudes into an inner space (inner surface side) of the housing. A resonance suppressing structure (for example, a concave portion), which is configured to suppress resonance between the lead pins, is provided in a lateral wall portion to which the plurality of lead pins are fixed.
First claim
Opening claim text (preview).
What is claimed is: 1. An optical modulator comprising: an optical modulation element that is accommodated in a housing, wherein a plurality of lead pins, which are electrically connected to the optical modulation element through wire bonding, are fixed to a lateral wall of the housing, each of the plurality of lead pins includes a portion that protrudes into an inner space of the housing, and a resonance suppressing structure, which is configured to suppress resonance between the lead pins, is formed on an outer surface of the lateral wall to which the plurality of lead pins are fixed. 2. The optical modulator according to claim 1 , wherein as the resonance suppressing structure, a concave portion or a convex portion, which is formed at least on an inner surface side of the lateral wall, is provided. 3. The optical modulator according to claim 2 , wherein as the resonance suppressing structure, a concave portion or a convex portion which is formed on an outer surface side of the lateral wall is further provided, and a position of a step difference in the concave portion or the convex portion is set to be different between the inner surface side and the outer surface side. 4. The optical modulator according to claim 1 , wherein as the resonance suppressing structure, a material, of which at least one of a density and an elastic coefficient is different from at least one of a density and an elastic coefficient of a material of the housing, is disposed at least at a part of the lateral wall. 5. The optical modulator according to claim 1 , wherein as the resonance suppressing structure, a vibration absorbing member, which absorbs vibration, is provided at least on an inner surface side of the lateral wall.
Assignees
Inventors
Classifications
Arrangements improving the resistance to acoustic resonance like noise · CPC title
Operation of devices; Circuit arrangements, not otherwise provided for in this subclass · CPC title
based on interference in an adjustable optical cavity (interference filters G02B5/28; devices or arrangements using multiple reflections in spectrometry or monochromators G01J3/26) · CPC title
- G02F1/2255Primary
controlled by a high-frequency electromagnetic component in an electric waveguide structure · CPC title
- G02F1/0305Primary
Constructional arrangements (G02F1/0327 - G02F1/05 take precedence) · CPC title
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- What does patent US10416527B2 cover?
- An optical modulator includes an optical modulation element that is accommodated in a housing. A plurality of lead pins, which are electrically connected to the optical modulation element through wire bonding, are fixed to a lateral wall of the housing. Each of the plurality of lead pins includes a portion that protrudes into an inner space (inner surface side) of the housing. A resonance suppr…
- Who is the assignee on this patent?
- Sumitomo Osaka Cement Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification G02F1/2255. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Sep 17 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).