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Tunable Pulse Stretcher for Ultrafast Lasers with VBG Compressor

TPSR
Philippe Laberge

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The PowerSpectrum™ TPSR-V tunable pulse stretcher is a compact, robust and cost-effective solution to control pulse durations in chirped-pulse amplification (CPA) systems that use a volume Bragg grating (VBG) compressor. The variable tuning feature allows the user to control the duration of the pulse and offsets amplifier-induced nonlinear effects. Tunability also reduces the laser system development cycle times and compensates for manufacturing variations. The all-fiber construction creates a compact and environmentallystable package suitable for a variety of demanding applications.The result is a customizable pulse stretcher that enables ultrafast laser systems that are powerful, low-maintenance, and cost-effective.

Early on, TeraXion recognized the emerging importance of ultrafast fiber lasers for industrial and medical applications. The TPSR-V is specifically designed for the generation of ultrafast pulses below 200 fs that are pedestal-free with high energy, average power, and lowcost while remaining environmentally stable.

  • Our exclusive FBG dispersion management expertise facilitates accurate phase matching, which enables pedestal-free femtosecond pulses.
  • Our in-house pairing of each TPSR-V to a specific customer-provided volume Bragg grating (VBG) compressor minimizes phase errors for optimal pulse compressibility.
  • Our flexible and user-friendly software make it easy to integrate the TPSR-V pulse stretcher with any laser design.

Top 5 Features

Effective

The TPSR-V can compensate amplifier-induced nonlinear effects for optimal performance at all energy regimes.

Versatile

Pulse-duration tuning enables a single laser to operate in both the picosecond and femtosecond regimes.

Low Cost

The ingenious, all-fiber design of the TPSR-V reduces overall system cost, minimizes maintenance and alignment, and increases productivity.

Reliable

The TPSR-V is based on the technology of our Telcordia®-qualified telecom products which are still operating after decades of use.

Integrated

Software integration between the TPSR-V and the laser system enables dynamic and precise pulse control that maintains optimum peak power.

Critical technical specifications

Label Value

Center Wavelength 

1 µm band

FBG Spectral Shape

Customizable

Total Stretching Window

500 ps

Dispersion Tuning

D2, D3 and D4

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