Frequency stabilization and channel identification for dense wavelength-division-multiplexing (WDM) fiber optic transmission systems

Mohsen Kavehrad, Quan Jiang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A dense WDM transmission system is promising for high-capacity fiber optic links. In a dense WDM system with a moderate number of channels, the total wavelength range can be within the discrete/continuous tuning range of multisection DBR lasers. Therefore, a laser array consisting of laser diodes with the same nominal wavelength can be used. In this paper, we propose a new frequency stabilization and channel identification technique for dense WDM transmission systems. The laser diodes on the transmitter side are frequency modulated by sinusoidal signals that are used as pilot tones for channel identification on the receiver side. Depending on the difference between the optical filter's central frequency and the received optical signal frequency, the filter output can be the sinusoidal signal itself or its second harmonic. We use a nonlinear electronic circuit and a phase-locked loop to regenerate the sinusoidal signal. This provides a reliable source for channel identification. Meanwhile, there is no need to modulate the optical filter central-frequency to lock it to the received signal since the received signal is already frequency-dithered and the sinusoidal signal is recovered on the receiver side. This eliminates the power penalty due to frequency-dither of the optical filter.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages245-248
Number of pages4
Volume2378
ISBN (Print)0819417254
StatePublished - 1995
EventLaser Frequency Stabilization and Noise Reduction - San Jose, CA, USA
Duration: Feb 9 1995Feb 10 1995

Other

OtherLaser Frequency Stabilization and Noise Reduction
CitySan Jose, CA, USA
Period2/9/952/10/95

Fingerprint

Dense wavelength division multiplexing
Optical filters
wavelength division multiplexing
Fiber optics
fiber optics
Stabilization
stabilization
Semiconductor lasers
optical filters
DBR lasers
Wavelength
Phase locked loops
Transmitters
Tuning
receivers
semiconductor lasers
dithers
Networks (circuits)
Lasers
laser arrays

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Kavehrad, M., & Jiang, Q. (1995). Frequency stabilization and channel identification for dense wavelength-division-multiplexing (WDM) fiber optic transmission systems. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 2378, pp. 245-248). Society of Photo-Optical Instrumentation Engineers.
Kavehrad, Mohsen ; Jiang, Quan. / Frequency stabilization and channel identification for dense wavelength-division-multiplexing (WDM) fiber optic transmission systems. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2378 Society of Photo-Optical Instrumentation Engineers, 1995. pp. 245-248
@inproceedings{d608739c08ab4d3fb4900cee051861de,
title = "Frequency stabilization and channel identification for dense wavelength-division-multiplexing (WDM) fiber optic transmission systems",
abstract = "A dense WDM transmission system is promising for high-capacity fiber optic links. In a dense WDM system with a moderate number of channels, the total wavelength range can be within the discrete/continuous tuning range of multisection DBR lasers. Therefore, a laser array consisting of laser diodes with the same nominal wavelength can be used. In this paper, we propose a new frequency stabilization and channel identification technique for dense WDM transmission systems. The laser diodes on the transmitter side are frequency modulated by sinusoidal signals that are used as pilot tones for channel identification on the receiver side. Depending on the difference between the optical filter's central frequency and the received optical signal frequency, the filter output can be the sinusoidal signal itself or its second harmonic. We use a nonlinear electronic circuit and a phase-locked loop to regenerate the sinusoidal signal. This provides a reliable source for channel identification. Meanwhile, there is no need to modulate the optical filter central-frequency to lock it to the received signal since the received signal is already frequency-dithered and the sinusoidal signal is recovered on the receiver side. This eliminates the power penalty due to frequency-dither of the optical filter.",
author = "Mohsen Kavehrad and Quan Jiang",
year = "1995",
language = "English (US)",
isbn = "0819417254",
volume = "2378",
pages = "245--248",
booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "Society of Photo-Optical Instrumentation Engineers",

}

Kavehrad, M & Jiang, Q 1995, Frequency stabilization and channel identification for dense wavelength-division-multiplexing (WDM) fiber optic transmission systems. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 2378, Society of Photo-Optical Instrumentation Engineers, pp. 245-248, Laser Frequency Stabilization and Noise Reduction, San Jose, CA, USA, 2/9/95.

Frequency stabilization and channel identification for dense wavelength-division-multiplexing (WDM) fiber optic transmission systems. / Kavehrad, Mohsen; Jiang, Quan.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2378 Society of Photo-Optical Instrumentation Engineers, 1995. p. 245-248.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Frequency stabilization and channel identification for dense wavelength-division-multiplexing (WDM) fiber optic transmission systems

AU - Kavehrad, Mohsen

AU - Jiang, Quan

PY - 1995

Y1 - 1995

N2 - A dense WDM transmission system is promising for high-capacity fiber optic links. In a dense WDM system with a moderate number of channels, the total wavelength range can be within the discrete/continuous tuning range of multisection DBR lasers. Therefore, a laser array consisting of laser diodes with the same nominal wavelength can be used. In this paper, we propose a new frequency stabilization and channel identification technique for dense WDM transmission systems. The laser diodes on the transmitter side are frequency modulated by sinusoidal signals that are used as pilot tones for channel identification on the receiver side. Depending on the difference between the optical filter's central frequency and the received optical signal frequency, the filter output can be the sinusoidal signal itself or its second harmonic. We use a nonlinear electronic circuit and a phase-locked loop to regenerate the sinusoidal signal. This provides a reliable source for channel identification. Meanwhile, there is no need to modulate the optical filter central-frequency to lock it to the received signal since the received signal is already frequency-dithered and the sinusoidal signal is recovered on the receiver side. This eliminates the power penalty due to frequency-dither of the optical filter.

AB - A dense WDM transmission system is promising for high-capacity fiber optic links. In a dense WDM system with a moderate number of channels, the total wavelength range can be within the discrete/continuous tuning range of multisection DBR lasers. Therefore, a laser array consisting of laser diodes with the same nominal wavelength can be used. In this paper, we propose a new frequency stabilization and channel identification technique for dense WDM transmission systems. The laser diodes on the transmitter side are frequency modulated by sinusoidal signals that are used as pilot tones for channel identification on the receiver side. Depending on the difference between the optical filter's central frequency and the received optical signal frequency, the filter output can be the sinusoidal signal itself or its second harmonic. We use a nonlinear electronic circuit and a phase-locked loop to regenerate the sinusoidal signal. This provides a reliable source for channel identification. Meanwhile, there is no need to modulate the optical filter central-frequency to lock it to the received signal since the received signal is already frequency-dithered and the sinusoidal signal is recovered on the receiver side. This eliminates the power penalty due to frequency-dither of the optical filter.

UR - http://www.scopus.com/inward/record.url?scp=0029218822&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029218822&partnerID=8YFLogxK

M3 - Conference contribution

SN - 0819417254

VL - 2378

SP - 245

EP - 248

BT - Proceedings of SPIE - The International Society for Optical Engineering

PB - Society of Photo-Optical Instrumentation Engineers

ER -

Kavehrad M, Jiang Q. Frequency stabilization and channel identification for dense wavelength-division-multiplexing (WDM) fiber optic transmission systems. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2378. Society of Photo-Optical Instrumentation Engineers. 1995. p. 245-248