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	Chromatic dispersion compensator (CDC) in a photonic integrated circuit (PIC) chip and method of operation
	GRUBB, STEPHEN G.; JOYNER, CHARLES H.; PETERS, FRANK H.; KISH, FRED A. JR.; PERKINS, DREW D.
	2005-05-26
著作权人	INFINERA CORPORATION
专利号	US20050111848A1
国家	美国
文献子类	发明申请
其他题名	Chromatic dispersion compensator (CDC) in a photonic integrated circuit (PIC) chip and method of operation
英文摘要	An optical equalizer/dispersion compensator (E/CDC) comprises an input/output for receiving a multiplexed channel signal comprising a plurality of channel signals of different wavelengths. An optical amplifier may be coupled to receive, as an input/output, the multiplexed channel signals which amplifier may be a semiconductor optical amplifier (SOA) or a gain clamped-semiconductor optical amplifier (GC-SOA). A variable optical attenuator (VOA) is coupled to the optical amplifier and a chromatic dispersion compensator (CDC) is coupled to the variable optical attenuator. A mirror or Faraday rotator mirror (FRM) is coupled to the chromatic dispersion compensator to reflect the multiplexed channel signal back through optical components comprising the chromatic dispersion compensator, the variable optical attenuator and the optical amplifier so that the multiplexed channel signal is corrected partially for equalization and chromatic dispersion compensation with respect to each pass through these optical components. The E/CDC components may be integrated in a photonic integrated circuit (PIC) chip. In several embodiments, a photonic integrated circuit (PIC) chip comprises an input into the chip that receives at least one channel signal having experienced chromatic dispersion, a chromatic dispersion compensator (CDC) that separates the at least one channel signal into separate wavelength components over a free spectral range (FSR) spanning only a signal channel width and subjects the wavelength components to a phase shift to change the wavelength group delay in the wavelength components and that recombines the wavelength components to reconstitute the at least one channel signal, and an output from the chip for the recombined at least one channel signal having reduced chromatic dispersion compared to the same channel signal received at the chip input. The CDC device may include a tuning section to vary the phase shift of wavelength components as they propagate through the device. Such a CDC device may include a Mach-Zehnder interferometer (MZI) or a cascaded group of Mach-Zehnder interferometers, or at least one arrayed waveguide grating (AWG) or at least one Echelle grating.
公开日期	2005-05-26
申请日期	2004-10-22
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/53455]
专题	半导体激光器专利数据库
作者单位	INFINERA CORPORATION
推荐引用方式 GB/T 7714	GRUBB, STEPHEN G.,JOYNER, CHARLES H.,PETERS, FRANK H.,et al. Chromatic dispersion compensator (CDC) in a photonic integrated circuit (PIC) chip and method of operation. US20050111848A1. 2005-05-26.

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