Publication

Stable picosecond pulse generation at 1.3 mm in a Pr3+-doped all-fiber laser actively mode-locked using a fiber-optic phase modulator.

Hans Georg Limberger
1998
Conference Papers

Abstract

Rare-earth doped fibers can be used to realize simple, compact sources of ultrashort pulses. To date, considerable effort has been developed to obtain short pulse generation in Er3+-doped fiber lasers at 1.55 μm. Contrary to this, little work has been done on Pr3+-doped fiber lasers emitting an important 1.3 μm. This report describes an all-fiber laser incorporating a Pr3+-doped active fiber, fiber Bragg gratings (FBGs) as cavity mirrors, and a novel piezoelectric fiber-optic phase modulator (PFOM) for active mode-locking.

Official source

https://infoscience.epfl.ch/entities/publication/9f717660-aef0-4cf1-ba32-6a1d89c7ea6e

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Hans Georg Limberger
1998
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/9f717660-aef0-4cf1-ba32-6a1d89c7ea6e

About this result

Related concepts (32)

Fiber laser

A fiber laser (or fibre laser in Commonwealth English) is a laser in which the active gain medium is an optical fiber doped with rare-earth elements such as erbium, ytterbium, neodymium, dysprosium, praseodymium, thulium and holmium. They are related to doped fiber amplifiers, which provide light amplification without lasing. Fiber nonlinearities, such as stimulated Raman scattering or four-wave mixing can also provide gain and thus serve as gain media for a fiber laser.

Mode locking

Mode locking is a technique in optics by which a laser can be made to produce pulses of light of extremely short duration, on the order of picoseconds (10−12 s) or femtoseconds (10−15 s). A laser operated in this way is sometimes referred to as a femtosecond laser, for example, in modern refractive surgery. The basis of the technique is to induce a fixed phase relationship between the longitudinal modes of the laser's resonant cavity. Constructive interference between these modes can cause the laser light to be produced as a train of pulses.

Fiber Bragg grating

A fiber Bragg grating (FBG) is a type of distributed Bragg reflector constructed in a short segment of optical fiber that reflects particular wavelengths of light and transmits all others. This is achieved by creating a periodic variation in the refractive index of the fiber core, which generates a wavelength-specific dielectric mirror. Hence a fiber Bragg grating can be used as an inline optical fiber to block certain wavelengths, can be used for sensing applications, or it can be used as wavelength-specific reflector.

Related publications (8)

Stable picosecond pulse generation at 1.3 mm in a Pr3+-doped all-fiber laser actively mode-locked using a fiber-optic phase modulator.

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