Device and method for generating broadband OFC (Optical Frequency Comb)

A technology of optical frequency comb and generation method, which is applied in the field of optical communication and can solve the problem of limited number of optical comb lines

Active Publication Date: 2014-04-23
XIDIAN UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the number of optical comb lines produced by the electro-optic modulator method is still relatively limited, and it is necessary to continue to study and propose a method for generating broadband

Method used

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  • Device and method for generating broadband OFC (Optical Frequency Comb)
  • Device and method for generating broadband OFC (Optical Frequency Comb)
  • Device and method for generating broadband OFC (Optical Frequency Comb)

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Embodiment Construction

[0034] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that this embodiment is implemented on the premise of the technical solution of the present invention, and the detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0035] like figure 1As shown, the present invention is a generation device of a broadband optical frequency comb, and the device includes a laser 1, a polarization controller 2, a polarization controller 8, a polarization controller 12, a radio frequency signal source 4, a radio frequency signal source 10, a radio frequency signal Source 14, DC voltage source 5, DC voltage source 6, DC voltage source 7, DC voltage source 11, DC voltage source 15, dual parallel Mach-Zehnder modulator 3, Mach-Zehnder intensity modulator 9, Mach-Zehnder del intensity modulator 13 and o...

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Abstract

The invention discloses a method for generating a broadband OFC (Optical Frequency Comb). A 50 line broadband optical frequency comb is generated by adopting a cascade structure of a DPMZM (Double-Parallel Mach-Zehnder Modulator) and two Mach-Zehnder IMs (Intensity Modulators) and adjusting a radio frequency amplitude and a direct current offset voltage of each modulator, the power is smooth, and the interval between spectral lines is adjustable. The optical comb performance generated in the scheme is relatively good, and great significance is achieved for the application and development of the broadband OFC in the optical communication field. The system structure of the device and method for generating the broadband OFC is relatively simple, easy to implement, and conductive to reducing the system cost.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to an optical frequency comb generation device and method thereof which utilizes an external laser modulation technology to generate an optical frequency comb with wide frequency bandwidth, variable interval, flat power and high suppression ratio. Background technique [0002] Optical Frequency Comb (OFC) refers to a spectrum composed of a series of uniformly spaced and phase-coherent frequency components on the spectrum. The main performance indicators include the number of optical comb lines, spectral line spacing, and flatness. With the continuous growth of communication requirements and the rapid development of communication technology, optical wavelength division multiplexing (WDM) and optical orthogonal frequency division multiplexing (OFDM) technologies have gradually become research hotspots, and one of the bottlenecks restricting the development of these system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/35
Inventor 尚磊林贵斌文爱军高永胜项水英张慧星林林
Owner XIDIAN UNIV
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