Features
- Compact and robust laser optimized for OEM integration in sensing applications like DAS and vibrometry
- Low phase noise and narrow linewidth
- Robust single-frequency operation
- High wavelength stability
- PM and fast frequency tuning option
Wavelength and tuning
The standard wavelength is 1550 nm and the MIKRO is available with output wavelength anywhere in the 1535 to 1580 nm range. Moreover, the laser offers a wide thermal wavelength tuning range and can be combined with fast wavelength modulation e.g. for external stabilization.
Polarization
The lasers are available with PM (Polarisation Maintaining) or non-PM output.
Interface
For easy control, the MIKRO is available with an optional USB interface kit and can be controlled via our NKTP CONTROL graphical user interface.
| Model | Standard Wavelength | Other wavelengths | Output power | PM | Fast modulation |
| E15 | 1550.12 nm | 1535 - 1580 nm | 40 mW | Optional | Optional |
Optical
| E15 | ||
| Laser emission | CW - inherently single frequency | |
| Beam quality, M² | < 1.05 | |
| Linewidth 1) | < 0.1 kHz | |
| Max phase noise | -90 dB((Rad/√Hz)/m) @10 Hz -110 dB((Rad/√Hz)/m) @100 Hz -130 dB((Rad/√Hz)/m) @20 kHz |
|
| Max phase-noise | 32 (µrad/√Hz)/m @10 Hz 3.2 (µrad/√Hz)/m @100 Hz 0.3 (µrad/√Hz)/m @20 kHz |
|
| RIN peak | app. 0.7 MHz | |
| RIN level @ peak / 10 MHz [dBc/Hz] | <-100 / <-135 | |
| Optical S/N (50 pm res.) | > 50 dB (typ. > 55 dB) 2) | |
| Min thermal wavelength tuning range 3) | +/- 150 pm | |
| Total thermal tuning range | 450 pm | |
| Options: | ||
| Fast wavelength modulation range | > 8 GHz | |
| Fast wavelength modulation | Up to 20 kHz | |
| PM output - PER | > 23 dB | |
1) 120 µs integration time.
2) >47 dB (typ. > 52 dB) for non-PM version.
3) Relative to center wavelength at room temperature. If the laser is operated in very cold or hot environments, this wavelength range is truncated on either the upper or lower side.
Mechanical / Electrical/Environmental
| Power supply requirements | 12 VDC |
| Power consumption | Typical 4 W, max 12 W |
| Communication interface | RS-485 |
| Optical output | FC/APC (0.5 m pigtail) |
| Dimensions (HxWxD) | 20 mm x 70 mm x 150 mm |
| Weight [kg] | 0.35 kg |
| Operating temperature range, module temperature | 15 - 60 °C |
| Humidity non condensing | 0-70 %RH |
Mechanical
