1550 nm Programmable Picosecond Laser, PM (PPL-1550-PM)

Data Sheet

Product Overview

The Optilab PPL-1550-PM is a programmable laser that produces picosecond pulses with electrical input pulses. It functions as a seed pulse generator for Master Oscillator Power Amplifiers (MOPA). The PPL-1550-PM is designed to produce < 100 ps widths and corresponding repetition rates up to 100 MHz from the user’s electrical pulse generator. It features a high Extinction Ratio (ER) Mach-Zehnder Interferometer (MZI) optical modulator with a high pulse contrast of -30 dB. The PPL-1550-PM consists of a narrow-line-width, ultra stable, DFB laser diode, centered at 1550 nm transmission wavelength, but with the flexibility to offer wavelengths above 1563 nm upon request. The DFB laser operates under Continuous Wave (CW) mode, modulated by a high speed modulator rise time of less than 35 ps. The Automatic Bias Controller (ABC) board is used to properly maintain the bias point of the optical modulator and ensure jitter free, ultra-fast pulse generation.The PPL-1550-PM incorporates 25/300 Large Diameter Fiber (LDF) to overcome non-linear effect. It features PM fiber for polarization maintaining, and is available with an optional PM EDFA to boost peak pulse power. The laser system is equipped with a standard remote control interface (RS-232) and an LCD display screen for easy user interface, accessible through a front panel adjustment knob.

Applications

  • Picosecond pulse generator
  • Research & Development
  • Testing & Measurement
  • Master Oscillator Power Amplifier (MOPA)

Features

  • Programmable pulsewidth & repetition rate
  • High Pulse Contrast of -30 dB
  • Generate short pulse of < 100 ps
  • Uses external electrical input
  • 1540 nm to 1563 nm laser λ adjustable ±1.5 nm
  • Optional PM high power collimator
  • Optional high power PM EDFA
  • Collimated output available

Feature Name Description
General Specifications
Wavelength 1540 nm to 1563 nm, user specify; Special wavelengths between 1563 nm to 1580 nm can be requested
Wavelength Tuning Range Up to ±1.5 nm
Minimum Pulse Width < 100 ps
Modulator Rise/Fall Time < 35 ps
Source Laser Linewidth < 3 MHz, 1 MHz available
Pulse Repetition Rate Programmable 100 KHz to 100 MHz depending upon electrical pulse input
Energy per Pulse Up to 2 μJ w/ EDFA, at 500 KHz
Pulse Contrast -30 dB
Peak Power Output (no EDFA) 20 mW peak
Peak Power Output (w/ EDFA) Up to 2 kW peak
Jitter Relative to RF Reference 10 rms max.
Pulse Amplitude Variation 1% rms max.
Polarization Extinction Ratio 20 dB typ.
Amplitude Stability (Short Term) < 1%
Polarization Design Single linear polarization, slow axis passing
Electrical Pulse Input Specifications
Modulator Bandwidth Up to 20 GHz
Modulator Type MZI with high ER ratio 40 dB
Input Level > 0.5 V peak to peak
Pulse Repetition Rate Programmable 100 KHz to 100 MHz depending upon electrical pulse input
Minimal Pulse Width < 75 ps
Electrical Input Frequency 50 KHz to 12 GHz
Electrical Connector SMA
Optional Collimator Specifications
Collimated Beam Quality m2 < 1.5
Nominal Beam Diameter ~1.2 mm
Average Optical Power 15 W max.
Peak Power for ns Pulse 15 KW max
Fiber Type PLMA-GDF-25/300
Mechanical Specifications
Operating Temperature 0º C to +50º C
Storage Temperature -40° to +70° C
Humidity 10% to 90%
Power Supply 110 V AC and 220 V AC, 50 or 60 Hz
Display Temperature, Current, Voltage
Controls/Monitoring LDC display for Laser Switch, EDFA output power through front panel. See next page.
Communication Interface RS-232 interface with Ethernet optional
Dimensions 1RU: 19” x 14”x 1.75”
Optical Connector SMF-28 FC/APC or user option
Optical Fiber PANDA Fiber PM
Electrical Connectors SMA Female

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