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Dive into the research topics where Vincent Havard is active.

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Featured researches published by Vincent Havard.


european conference on optical communication | 2001

4.16 Tbit/s (104 /spl times/ 40 Gbit/s) unrepeatered transmission over 135 km in S+C+L bands with 104 nm total bandwidth

Francois Boubal; Eric Brandon; Laurence Buet; S. Chernikov; Vincent Havard; C. Heerdt; A. Hugbart; W. Idler; Laurent Labrunie; P. Le Roux; S.A.E. Lewis; A. Pham; L. Piriou; Roland Uhel; Jean-Pierre Blondel

104 /spl times/ 40 Gbit/s unrepeatered transmission over 135.9 km is demonstrated on S+C+L bands (1492-1596 nm) using S-band lumped Raman amplifiers. The system implements distributed Raman pre-amplification over continuous bandwidth of 104 nm.


european conference on optical communication | 2001

25 GHz spaced DWDM 160/spl times/10.66 Gbit/s (1.6 Tbit/s) unrepeatered transmission over 380 km

P. Le Roux; Francois Boubal; Eric Brandon; Laurence Buet; N. Darbois; Vincent Havard; Laurent Labrunie; L. Piriou; A. Tran; Jean-Pierre Blondel

Unrepeatered transmission of 160 25 GHz spaced channels at 10 Gbit/s over 380 km is demonstrated. The combination of recent advanced technologies, such as DWDM multiplexing/demultiplexing, large pump power, remote amplification, in-line filtering and FEC, allow this record transmission to be achieved.


Optical Amplifiers and Their Applications (2002), paper OMA2 | 2002

Raman amplification in unrepeatered submarine systems pushes the limits of distance and bandwidth

Francois Boubal; Eric Brandon; Laurence Buet; Vincent Havard; P. Le Roux; Laurent Labrunie; L. Piriou; Jean-Pierre Blondel

Raman amplification is a key technology for unrepeatered transmissions as it allows to widely increase both span length and optical bandwidth in a very simple manner. We review in this paper recent record demonstrations and installed systems where Raman amplification fulfills its role as a mean to reach very long repeaterless distances and to expand into new spectral areas.


Archive | 2002

Method of making an optical transmission system safe, a device for implementing the method, and an optical transmission system including the device

Laurent Labrunie; Eric Brandon; Patrice Le Roux; L. Piriou; Roland Uhel; Laurence Buet; Vincent Havard; Francois Boubal


optical fiber communication conference | 2001

Error-free 100x10 Gbit/s unrepeatered transmission over 350 km

Laurence Buet; Francois Boubal; Vincent Havard; Laurent Labrunie; P. Le Roux; Eric Brandon


Optical Amplifiers and Their Applications (2000), paper OMB8 | 2000

Broadband (32 nm) 640 Gbit/s unrepeatered transmission over 300 km with distributed dual wavelength Raman pre-amplification

Francois Boubal; Eric Brandon; Laurence Buet; Vincent Havard; Laurent Labrunie; P. Le Roux; Jean-Pierre Blondel


Archive | 2002

Safety procedure for optical fiber systems and safety interface to carry out such safety procedure

Eric Brandon; Laurent Labrunie; Jean-Pierre Blondel; Francois Boubal; Laurence Buet; Vincent Havard; Patrice Le Roux


Archive | 2004

Fiber optic transmission system using Raman effect amplification

Vincent Havard; Francois Boubal


european conference on optical communication | 2002

3.2 Terabit/s (320×10.66 Gbit/s) C+L unrepeatered transmission over 310 km using a low noise distributed Raman amplification

Laurent Labrunie; M. Benomar; Francois Boubal; Eric Brandon; D. Dufournet; Vincent Havard; P. Le Roux; L. Piriou; M. Mesic; Stephane Ruggeri; Jean-Pierre Blondel


Archive | 2004

Faseroptisches Übertragungssystem mit Ramanverstärkung An optical fiber transmission system using Raman amplification

Vincent Havard; Francois Boubal

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