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High Performance InP-Based Quantum Dash Semiconductor Mode-Locked Lasers for Optical Communications

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Novel configurations based on laser injection locking applied to Brillouin fibre sensing

Luc Thévenaz, Dario Alasia

Injection locking of two DFB semiconductors opens new possibilities to generate effective signals for fibre sensing. This is illustrated through the application to distributed Brillouin sensing that shows significant progress with respect to established te ...

IECE2003

Coherent optical information systems

Demetri Psaltis

Coherent optical beams are used to communicate, store, and process information in a growing number of applications. The availability of coherent laser sources is of critical importance for the realization of such optical information systems. An incoherent ...

2002

Ti:sapphire planar waveguide coherent broadband emitter

René Salathé

Summary form only given. In recent years, broadband fiber interferometers have become very popular as basic instruments used in optical coherence tomography (OCT) for imaging applications in the biomedical field. A major challenge in the further developmen ...

Opt. Soc. America2002

Net coherent optical gain in strongly pumped semiconductor microcavities

Benoît Marie Joseph Deveaud, Ursula Oesterle, Cristiano Ciuti, Michele Saba

We study the subpicosecond gain dynamics in a high-finesse semiconductor microcavity containing quantum wells by means of degenerate pump-probe spectroscopy. Tuning the optical excitation in resonance with both the exciton and the cavity modes, at high pum ...

2000

Extremely fast high-gain and low-current SOA by optical speed-up at transparency

Benoît Marie Joseph Deveaud, Marc-André Dupertuis

We propose a new configuration for semiconductor optical amplifiers (SOAs), called optical speed-up at transparency (OSAT), which allows to speed up the gain recovery of SOAs and their saturation power without sacrificing the gain, nor increasing the appli ...

2000

Protection Interoperability for WDM Optical Networks

Jean-Yves Le Boudec, Olivier Crochat

The failure of a single optical link or node in a Wavelength Division Multiplexing (WDM) network may cause the simultaneous failure of several optical channels. In some cases, this simultaneity may make it impossible for the higher level (SONET or IP) to r ...

2000

Fault Localization at the WDM layer

Jean-Yves Le Boudec, Patrick Thiran, Carmen Mas

A single failure in a communication network may trigger many alarms. When the communication network uses optical fibres as transmission medium and increases its capacity by using Wavelength Division Multiplexing (WDM), the number of alarms and the difficul ...

1999

Novel measurement scheme for injection-locking experiments

Luc Thévenaz, Philippe Robert

A novel experimental setup for injection-locking experiments is presented. The single-mode-fiber-based configuration allows one to precisely control the power and the polarization state of the light injected from the master laser into the slave laser cavit ...

Institute of Electrical and Electronics Engineers1999

Chirped fiber Bragg gratings for WDM chromatic dispersion compensation in multispan 10-Gb/s transmission

We report here the fabrication of fiber chromatic dispersion compensators, along with the tests of those components in wavelength-division-multiplexed transmission at 10 Gb/s and an analysis of their performance by simulation. ...

Institute of Electrical and Electronics Engineers1999

Fault Localisation for optical networks

Jean-Yves Le Boudec, Carmen Mas

A single failure in a communication network may trigger many alarms. When the communication network uses optical fibres as a transmission medium and increases its capacity by using Wavelength Division Multiplexing (WDM) and Space Division Multiplexing (SDM ...

1998