In-band OSNR monitoring based on low-bandwidth coherent receiver and tunable laser

doi:10.1007/s12200-016-0602-7

Front. Optoelectron.

2016, Vol. 9

Issue (3) : 526-530 https://doi.org/10.1007/s12200-016-0602-7

RESEARCH ARTICLE

In-band OSNR monitoring based on low-bandwidth coherent receiver and tunable laser

Yingqin PENG¹,Yuli CHEN¹,Qi SUI¹,Dawei WANG²,Dongyu GENG²,Freddy FU²,Zhaohui LI¹(

)

¹. Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
². Huawei Technologies Co. Ltd, Shenzhen 518129, China

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Abstract

An in-band optical signal-to-noise ratio (OSNR) monitoring technique with high resolution and large measurement range is demonstrated based on low-bandwidth coherent receiver and a tunable laser. The measurement range of OSNR is from 10 to 25 dB and the resolution can be controlled about ±1 dB.

Keywords optical performance monitoring (OPM) optical signal-to-noise ratio (OSNR) coherent communication tunable laser

Corresponding Author(s): Zhaohui LI

Just Accepted Date: 06 April 2016 Online First Date: 29 April 2016 Issue Date: 28 September 2016

Cite this article:

Yingqin PENG,Yuli CHEN,Qi SUI, et al. In-band OSNR monitoring based on low-bandwidth coherent receiver and tunable laser[J]. Front. Optoelectron., 2016, 9(3): 526-530.

URL:

https://academic.hep.com.cn/foe/EN/10.1007/s12200-016-0602-7
https://academic.hep.com.cn/foe/EN/Y2016/V9/I3/526

Fig.1 Operation principle of the proposed OSNR monitoring technique

Fig.2 Experimental setup. EDFA: erbium-doped fiber amplifier; VOA: variable optical attenuator; OSA: optical spectrum analyzer

Fig.3 Relationship of OSNR real errors and estimation values with different electrical filter bandwidth.VLF-490 means 1 dB bandwidth 490 MHz

Fig.4 Relationship of OSNR real errors and estimation values with different optical filter bandwidth

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