Description:
ModeSeed is a compact, robust, mode-locked Er-doped fiber oscillator built in all-fiber technology. Suited for most demanding scientific and industrial applications. It is available with a variety of optional extensions.
Specifications:
- Pulse repetition rate (frep): any chosen between 40 and 125 MHz
- Central wavelength: 1560 nm +/- 10 nm
- Self-starting, maintenance-free, button-operated
- Long lifetime
- No saturable absorber
- Single-box solution
| ModeSeed | |
| Central wavelengths | Output 1: 1560 nm +/- 10 nm, FWHM > 20 nm |
| Pulse repetition rate (frep) | Chosen between 40 and 125 MHz (others upon request) |
| Output power | > 10 mW at frep = 100 MHz |
| Pulse duration | Chirped or compressed (down to <100 fs depending on repetition rate) |
| Output type | Fiberized (FC/APC connector) |
| Polarization | Linear |
Optional extensions:
| Option | Parameters |
|
-AMP All-fiber in-line amplifier integrated with the oscillator |
Output power: >100 mW Pulse duration: <50 fs |
|
- SMOSC Intra-cavity stepper motor delay line for broadband repetition rate tuning |
frep tuning range: up to 2 MHz (@ frep = 100 MHz) Step: 1 µm (others on request) |
|
- PZTslow Intra-cavity piezoelectric stretcher for repetition rate tuning |
Tuning range: >1.5 kHz (@ frep = 100 MHz) Bandwidth: > 8 kHz Input signal: 0 - 150V |
|
- PZTfast Intra-cavity piezoelectric stretcher for repetition rate tuning |
Tuning range: >40 Hz (@ frep = 100 MHz) Bandwidth: > 10 kHz Input signal: 0 - 150V |
|
- EOMosc Intra-cavity all-fiber electro-optical modulator for fast phase locking to an external reference. Driver included |
frep tuning range: 200 Hz (@ frep = 100 MHz) Bandwidth: > 150 MHz Input signal: 10 Vpp |
|
- EOMPDH External all-fiber electro-optical modulator for generation of sidebands for Pound-Drever-Hall locking. Driver included |
Bandwidth: > 150 MHz Input signal: 10 Vpp |
|
- fCEO Module for detection of the fCEO frequency of the laser. This option includes an additional modulation input of the oscillator's current. |
fCEO tuning range: from 5 MHz to frep fCEO beat SNR: > 30 dB Modulation input for the pump oscillator: 10 Vpp (Hi-Z), <500 kHz bandwidth |
Performance:
|
Optical spectrum generated from the main output (dB scale). |
RF spectrum of the fREP monitor port: 4 MHz span, RBW = 1 kHz, no averaging. |
|
RF spectrum of the fREP monitor port, 0V at the PZTslow (blue), 150V at PZTfast (purple). |
RF spectrum of the fREP monitor port, 0V at the PZTfast (blue), 150V at PZTfast (purple). |
 RF spectrum of the fREP monitor port for 5 different settings of the stepper motor position, 4 MHz span, RBW = 1 kHz, no averaging. |
