Your browser does not support JavaScript!
http://iet.metastore.ingenta.com
1887

Power spectra of FSK modulated laser fields

Power spectra of FSK modulated laser fields

For access to this article, please select a purchase option:

Buy article PDF
£12.50
(plus tax if applicable)
Add to cart
Buy Knowledge Pack
10 articles for £75.00
(plus taxes if applicable)
Add to cart

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
Electronics Letters — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

© IEE
Published

In a continuous phase frequency shift keying (CPFSK) coherent optical communication system, the optical signal is usually generated by modulating the bias current of a singlemode laser diode. This generation process is always accompanied by a simultaneous intensity modulation (IM) of the emitted light. The authors derive an exact expression for the power spectra of the optical CPFSK signal, taking this simultaneous IM effect into account. From the derived formula, the asymmetical shape of the power spectra observed earlier by other investigators is shown and explained.

Inspec keywords: frequency shift keying; optical communication; laser beam applications; optical modulation

Other keywords: singlemode laser diode; optical CPFSK signal; FSK modulated laser fields; asymmetrical shape; coherent optical communication; simultaneous intensity modulation; power spectra; continuous phase frequency shift keying; bias current modulation

Subjects: Modulation and coding methods; Laser applications; Optical communication

References

    1. 1)
      • C.K. Chan , T.T. Tjhung . Spectra of combined digital amplitude and frequency modulation. Electron. Lett. , 13 , 327 - 328
    2. 2)
      • H. Olesen , G. Jacobsen . A theoretical and experimental analysis of modulated laser fields andpower spectra. IEEE J. Quantum Electron. , 12 , 2069 - 2080
    3. 3)
      • L.G. Kazovsky , G. Jacobsen . Multichannel CPFSK coherent optical communications systems. J. Lightwave Technol. , 6 , 972 - 982
    4. 4)
      • T. Naito , T. Chikama , G. Ishikawa . Optimum system parameters for multigigabit CPFSK optical heterodyne detectionsystems. J. Lightwave Technol. , 10 , 1835 - 1841
    5. 5)
      • Q.S. Loh , T.T. Tjhung , C.C. Ko . Power spectra and band occupancy of coded mark inversion in direct andfrequency modulation transmission. Int. J. Electron. , 3 , 355 - 364
    6. 6)
      • W.R. Bennett , S.O. Rice . Spectral density and autocorrelation functions associated with binaryfrequency-shift keying. Bell Syst. Technol. J. , 9 , 2355 - 2385
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19951340
Loading

Related content

content/journals/10.1049/el_19951340
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
Print this page
This is a required field
Please enter a valid email address