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Stress-tuned planar lightwave circuit and method therefor

A circuit and planar light wave technology, applied in light guides, optics, instruments, etc., can solve the problems of large chip area, high cost per chip, etc., and achieve the effect of cheap PLC chips, low optical loss, and effective phase control

Active Publication Date: 2017-08-29
LIONIX INT BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0018] Therefore, PLCs based on low-contrast waveguides require a large chip footprint for any significant function, which results in a high cost per chip

Method used

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  • Stress-tuned planar lightwave circuit and method therefor
  • Stress-tuned planar lightwave circuit and method therefor
  • Stress-tuned planar lightwave circuit and method therefor

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Embodiment Construction

[0050] For the purposes of this specification, including the appended claims, the terms "disposed on" or "formed on" are defined as "present on" an underlying material or layer, or in direct physical contact therewith or by means of one or more middle layer. For example, if a material is described as being "deployed (or grown)" on a substrate, this can mean that either (1) the material is in intimate contact with the substrate; or (2) the material is in contact with one or more layers already present on the substrate touch. It should be noted that a conformal layer is considered to be deployed on each surface of the structure with which it conforms.

[0051] This case is a continuation-in-part of US Patent Application Serial No. 14 / 051715, entitled "Surface Waveguide Having a Tapered Region and Method of Forming" (hereinafter "parent case"), which is hereby incorporated by reference in its entirety. As discussed in the parent case, the use of waveguide taper-based spot size ...

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Abstract

A planar lightwave circuit that can be optically coupled with an external device with low optical loss, while also providing low-power functional control over an optical signal propagating through the PLC is disclosed. The PLC includes a high-contrast waveguide region in a stress-inducing (SI) phase shifter is formed such that it can control the phase of the optical signal. The high-contrast-waveguide region is optically coupled to a low-contrast-waveguide region via a spotsize converter, thereby enabling optical coupling to off-chip devices with low optical loss. Formation of the SI phase shifter in a high-contrast-waveguide region enables improved responsivity and phase control, reduced voltage, and a smaller required chip occupied area. As a result, the present invention enables lower-cost and higher-performance PLC systems.

Description

[0001] Cross References to Related Applications [0002] This case is a continuation-in-part of co-pending U.S. Patent Application Serial No. 14 / 051715 (Attorney Docket: 142-024US1) filed on October 11, 2013, which is required to be filed on October 11, 2012 Priority of U.S. Provisional Patent Application Serial No. 61 / 712,587 (Attorney Docket: 142-024PR1), each of which is hereby incorporated by reference. [0003] Furthermore, the underlying concepts (but not necessarily the language) of the following cases are hereby incorporated by reference: [0004] (1) US Patent 7,146,087 issued on December 5, 2006; [0005] (2) U.S. Patent Application Serial No. 14 / 321,138; and [0006] (3) US Patent 7,142,759 issued on November 28, 2006. [0007] In the event of any language inconsistency or inconsistency between this application and one or more cases in this case that have been incorporated by reference that may affect the interpretation of the scope of protection, the scope of prot...

Claims

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Application Information

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IPC IPC(8): G02F1/025G02F1/225G02B6/122G02B6/132G02B6/14
CPCG02B6/122G02B6/132G02B6/14G02F1/025G02F1/225G02F1/2257G02B6/12007G02B6/1223G02B6/125G02F1/0134G02B6/1228
Inventor R·G·黑德曼A·雷恩斯
Owner LIONIX INT BV
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