Ekspla PGx11 Transform Limited Broadly Tunable Picosecond OPA

PGX11 series picosecond narrow linewidth OPG

Ekspla's PGx11 series optical parametric devices employ advanced design concepts in order to produce broadly tunable picosecond pulses with nearly Fourier-transform limited linewidth and low divergence. High brightness output beam makes the PGx11 series units an excellent choice for advanced spectroscopy applications.

Optical layout of PGx11 units consists of Synchronously pumped Optical Parametric Oscillator (SOPO) and Optical Parametric Amplifier (OPA). SOPO is pumped by a train of pulses at approx. 87 MHz pulse repetition rate. The output from SOPO consists of a train of pulses with excellent spatial and spectral characteristics, determined by the SOPO cavity parameters.

OPA is pumped by a single pulse temporally overlapped with SOPO output. After amplification at SOPO resonating wavelength, the PGx11 output represents a high intensity single pulse on top of a low-intensity train, while in all other spectral ranges (idler for PG411 and PG711, signal for PG511, also DFG stages) only a single high intensity pulse is present.

Microprocessor based control system provides automatic positioning of relevant components, allowing hands free operation. Nonlinear crystals, diffraction grating and filters are rotated by ultra-precise stepper motors in microstepping mode, with excellent reproducibility.

Precise nonlinear crystal temperature stabilization ensures long-term stability of generated wavelength and output power.

For customer convenience the system can be controlled using a user-friendly remote control pad or through USB interface (RS232 is optional) from a personal computer (PC) using supplied LabView™ drivers.

Available standard models are summarized in a Specifications table below. Please inquire for custom-built versions. Read more. 

Download datasheet here.

  • Transform limited picosecond OPA
  • Ultrabroad tuning from 193 to 2300 nm
  • <2 cm-1 linewidth
  • Up to 0.7 mJ in VIS
  • 10 Hz repetition rate

Features

  • High brightness picosecond pulses at up to 1 kHz pulse repetition rate
  • Nearly Fourier-transform limited linewidth
  • Low divergence <2 mrad
  • Hands-free wavelength tuning
  • Tuning range from 193 nm to 16000 nm
  • Remote control via keypad
  • PC control using USB (RS232 is optional) and LabVIEW™ drivers

Applications

  • Time resolved pump-probe spectroscopy
  • Laser-induced fluorescence
  • Infrared spectroscopy
  • Nonlinear spectroscopy: vibrational-SFG, surface-SH, CARS, Z-scan
  • Other laser spectroscopy applications
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