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Deterministic optical soliton frequency comb generation system and method based on micro-cavity

An optical soliton and deterministic technology, applied in the field of optical frequency combs, can solve the performance limitations of optical frequency combs, high noise of swept frequency light sources, poor frequency stability, etc., and achieve a simplified control process, low cost, and high reliability. Effect

Pending Publication Date: 2019-01-01
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technology is highly dependent on the performance of the frequency-sweeping light source, requiring a complex control system, and the cost is extremely high; at the same time, the frequency-sweeping light source usually has high noise and poor frequency stability, so the performance of the optical frequency comb generated is limited. Pump source limitations

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  • Deterministic optical soliton frequency comb generation system and method based on micro-cavity
  • Deterministic optical soliton frequency comb generation system and method based on micro-cavity
  • Deterministic optical soliton frequency comb generation system and method based on micro-cavity

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Embodiment 1

[0064] figure 1 It is a schematic diagram of the structure and principle of the first embodiment. As shown in the figure, a deterministic optical soliton frequency comb generation system based on a microring resonator in this embodiment consists of a pump laser system 1, an auxiliary laser system 2, and a packaged micro The ring resonant cavity 3, the temperature controller 4 and the output optical fiber 5 are formed. Wherein the pumping laser system 1 includes a pumping laser 11, a first optical amplifier 12, a first polarization controller 13 and a first optical reverse stopper 14 connected sequentially along the optical path through an optical fiber; the auxiliary laser system 2 includes an auxiliary laser 21, The second optical amplifier 22, the second polarization controller 23, and the second light reverse stopper 24; the packaged microring resonator 3 includes a packaging case 31 and a semiconductor refrigerator 32 and a temperature sensor located inside the packaging c...

Embodiment 2

[0070] The difference between this embodiment and the first embodiment is that the microring resonator 34 in this embodiment is an all-through type, and the packaged microring resonator 3 only has two ports: an input port 35 and a through port 36 . Therefore, the third port of the optical circulator in this embodiment is used as the output of the microcavity soliton frequency comb. And in this embodiment, the semiconductor refrigerator 32 and the temperature sensor 33 in the first embodiment are replaced by the metal wire heater 39 plated on the surface of the microring resonator cavity 34. At this time, the temperature controller 4 is a stable current with high adjustment accuracy source.

[0071] Using the system in the above embodiment to generate a deterministic microcavity optical soliton frequency comb by the following method:

[0072] 1. Set the working wavelength of the auxiliary laser 21 so that the pump laser and the auxiliary laser can be coupled into a pair of ort...

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Abstract

The invention relates to an optical frequency comb, and specifically relates to a deterministic optical soliton frequency comb generation system and method based on a micro-cavity. The system comprises a pump laser system, an auxiliary laser system, a packaged micro-cavity resonant cavity, and a temperature controller. The pump laser system and the auxiliary laser system consist of a narrow line width laser with the fixed wavelength or adjustable wavelength, a light amplifier, a polarization controller and an optical circulator. The temperature control system consists of a semiconductor coolerand a controller of the semiconductor cooler, or consists of an on-chip integrated metal lien and a current control system. The system employs the temperature tuning for the position of the harmonicpeak of the micro-cavity resonant cavity, achieves the deterministic generation of a micro-cavity optical soliton frequency comb. According to the scheme provided by the invention, the system is simple in structure, is low in cost, and is high in operability, solves a problem of the dependence on a high-frequency device in a generation process of the micro-cavity optical soliton frequency comb, and has a high practical value in the application field of the micro-cavity optical soliton frequency comb in future.

Description

technical field [0001] The present invention relates to an optical frequency comb, in particular to a Kerr optical frequency comb based on a microring resonator, and more specifically to a system and method for generating a soliton state optical frequency comb based on a microring resonator. Background technique [0002] An optical frequency comb consists of a series of equally spaced and phase-locked optical frequencies that form a comb-like spectrum. An optical frequency comb is like a ruler or a timer with a precise scale. The measurement of length is more accurate than nanometers, and the time is better than femtoseconds or even attoseconds. Therefore, optical frequency combs have important application value in the fields of optical atomic clocks, chemical detectors, long-distance communications, lidar and super lasers. There are three main types of optical frequency combs, namely optical frequency combs based on mode-locked lasers, optical frequency combs based on phot...

Claims

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Application Information

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IPC IPC(8): H01S3/131H01S3/102H01S3/108H01S3/067H01S3/091G02F1/35
CPCH01S3/06791H01S3/091H01S3/1028H01S3/1083H01S3/1317G02F1/353
Inventor 王伟强卢志舟张文富谢鹏赵卫
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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