Femtosecond laser module LightWire FFS

picosecondfibernear-infrared

The LightWire FFS series are compact fiber seeders designed for femtosecond lasers, dedicated for seeding solid state Nd:YAG, Yb:YAG, Yb:KGW, and Yb:CALGO based CPA systems. These fiber lasers offer turn-key operation, a monolithic design, and require no maintenance, making them ideal for industrial settings and multidisciplinary research laboratories. The series includes models with femtosecond and picosecond pulse durations, providing flexibility for various applications.

Features

• Pulse energy > 250 nJ at repetition rate < 200 kHz (for FFS200CHI)
• Compressed or chirped broadband pulses
• Pulses compressible down to < 200 fs (for FFS100CHI) and < 250 fs (for FFS200CHI)
• Pulse duration < 140 fs (for FFS200)
• PLL option
• Other wavelengths available on request

Applications

• Seeding femtosecond CPA systems
• Ultrafast spectroscopy
• Time-domain terahertz spectroscopy

Description
The LightWire FFS series is tailored for researchers and OEM integrators who require compact, convenient, and maintenance-free sources with bandwidth-limited picosecond pulses, broadband pulses compressible down to <200 fs, or sub-140 fs femtosecond pulses. The widely tunable pulse repetition rate (25 kHz – 50 MHz) makes these lasers suitable for non-linear microscopy, time-resolved spectroscopy, terahertz spectroscopy, and ultrafast metrology applications. The FFS lasers are available with femtosecond pulse duration directly from fiber or with chirped pulses. A broad spectral bandwidth (up to 15 nm) enables amplification of pulses with <200 fs compressed duration. The FFS200CHI model features a customizable chirp profile to match the compressor design of the CPA system.

Specifications

• Central wavelength: 1030 ± 1 nm (FFS100CHI, FFS200CHI), 1064 nm (FFS200)
• Typical spectral bandwidth (at FWHM): up to 15 nm (FFS100CHI, FFS200CHI), > 20 nm (FFS200)
• Pulse duration: Up to 30 ps, compressible down to < 200 fs (FFS100CHI); > 50 ps, compressible down to < 250 fs (FFS200CHI); < 140 fs (FFS200)
• Chirp profile: linear, custom (FFS100CHI, FFS200CHI); NA (FFS200)
• Pulse repetition rate with pulse picker: 25 kHz – 50 MHz (FFS100CHI, FFS200); 100 kHz – 50 MHz (FFS200CHI)
• Output power (without/with pulse picker): > 50 mW / > 25 mW (FFS100CHI); > 200 mW at 50 MHz, > 100 mW at 1 MHz, > 25 mW at 100 kHz (FFS200CHI); > 200 mW / > 100 mW (FFS200)
• Pulse energy (without/with pulse picker): > 1 nJ / > 0.5 nJ (FFS100CHI); > 250 nJ at repetition rates < 200 kHz (FFS200CHI); > 5 nJ / > 2.5 nJ (FFS200)
• Polarization: linear, > 100:1 extinction (FFS100CHI, FFS200CHI); linear, > 10:1 extinction (FFS200)
• Optical output: FC/APC connector or collimator with mounting flange (FFS100CHI); collimator & isolator node (FFS200CHI); FC/PC connector or collimated beam (FFS200)
• Output fiber length: up to 5 m (FFS100CHI), up to 3 m (FFS200CHI), up to 2 m (FFS200)
• Beam diameter: 0.9 ± 0.1 mm (all models)
• Beam height: 38 mm (FFS200CHI), NA (others)
• Beam quality: M² < 1.1 (FFS100CHI, FFS200CHI), M² < 1.5 (FFS200)
• Pulse train monitoring: photodiode output for oscillator train, TTL synch pulse for laser output (when pulse picker included)
• Dimensions of collimator (D × L): Ø33 × 11.76 mm (all models)
• Control interface: CAN (USB, RS232, LAN optional)
• Room temperature: 10–30 °C
• Relative humidity: not condensing
• Power supply: 100–240 V, 50–60 Hz AC
• Power consumption: maximal 230 W (typical 60 W)

Ordering Information

• Ordering information and configuration options are available in the product documentation and ordering images.

Characteristics / Technical Specifications

• Pulse energy: up to > 250 nJ at < 200 kHz (FFS200CHI)
• Pulse duration: compressible down to < 200 fs (FFS100CHI), < 250 fs (FFS200CHI), < 140 fs (FFS200)
• Central wavelength: 1030 ± 1 nm (FFS100CHI, FFS200CHI), 1064 nm (FFS200)
• Spectral bandwidth: up to 15 nm (FFS100CHI, FFS200CHI), > 20 nm (FFS200)
• Pulse repetition rate: 25 kHz – 50 MHz (FFS100CHI, FFS200), 100 kHz – 50 MHz (FFS200CHI)
• Output power: up to > 200 mW
• Polarization: linear, high extinction ratio
• Beam diameter: 0.9 ± 0.1 mm
• Control interface: CAN, USB, RS232, LAN (optional)
• Operating temperature: 10–30 °C
• Power supply: 100–240 V, 50–60 Hz AC
• Power consumption: up to 230 W