一种采用光定向耦合器结构的新型波长传感器

Proceedings of 2002 IEEE/LEOS Workshop on Fibre and Optical Passive Components (Cat.No.02EX595) Pub Date : 2002-08-07 DOI:10.1109/FOPC.2002.1015833

K. Sae-tang, S. Somkuarnpanit, S. Khuntaweetep

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引用次数: 7

摘要

时域有限差分(FDTD)用于分析光通过该结构传播的场强。器件宽度为0.4 /spl mu/m，厚度为0.4 /spl mu/m，对应的耦合长度为40 /spl mu/m，耦合效率与波长呈线性关系。该器件可感知1.5 /spl μ m ~ 1.6 /spl μ m范围内的波长，具有连续分辨率。宽波长也可以通过将光平行于若干具有特定所需波段的波长感应模块来实现。因此，它可以用于大多数光通信，光电子，激光等应用的波长传感。

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A novel wavelength sensor using a structure of optical directional coupler

The finite-difference time-domain (FDTD) is used in an analysis of the field intensity of light propagating through the structure. The device with width of 0.4 /spl mu/m and thickness of 0.4 /spl mu/m, which corresponding to the coupling length of 40 /spl mu/m, provides a linear relationship between the coupling efficiency against wavelength. The device can sense the wavelength in a range between 1.5 /spl mu/m and 1.6 /spl mu/m, with continuous resolution. The wide wavelength could also be achieved by paralleling the light to a number of wavelength-sensing modules with particular required bands. Therefore, it could be employed for wavelength sensing for most optical communications, optoelectronics, laser applications etc.

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Proceedings of 2002 IEEE/LEOS Workshop on Fibre and Optical Passive Components (Cat.No.02EX595)

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