
DL DFB BFY: Compact Butterfly Package
- DFB diode laser with built-in TEC, isolator, fiber pigtail
- Available wavelengths: 1064 nm, 1300 – 1670 nm
- Mode-hop free tuning range up to 5 nm
- Compact housing, superior heat management
- Options: HF modulation, additional fiber inline isolator
TOPTICA's new DL DFB BFY is a laser head designed for butterfly-type DFB diodes. The diode output is optically isolated and focused into a single-mode fiber pigtail. The compact and rugged laser head provides not only the required mechanical protection for the laser diode, but also a superior heat management even for high-power DFB diodes. The unit is available either with fiber output or with a fiber connector port.
Technical Information
Technical Information

DL DFB BFY wavelength coverage: 1064 .. 1670 nm.
| Center wavelengths | 1064 nm, 1300 - 1670 nm |
| Power range | 10 .. 100 mW (fiber output) |
| Tuning range | 2 .. 5 nm, mode-hop free |
| Thermal tuning Typical range Typical speed Typical rate | > 600 GHz 25 GHz / sec -10 .. - 15 GHz/K |
Electric tuning | > 25 GHz 10 kHz* 0.3 .. 1.0 GHz/mA |
| Typical linewidth (5 µs integration time) | 1 .. 5 MHz |
| Optical isolators | Integrated, > 30 dB |
| Output beam characteristics | Circular, divergent Fiber NA typ. 0.12 |
| Output beam polarization | Linear, typ. 100:1 |
| Typical long-term frequency stability | 15 MHz RMS, 100 MHz pp @ 15 hrs** |
| Typical freqency change with ambient temperature | 20 MHz/K (laser head) 100 MHz/K (laser head + electronics) |
| Thermal stabilization | Built-in TEC |
| Environmental temperature (operating) | 15 - 30°C |
| Environmental temperature (transport) | 0 - 40°C |
| Humidity | Non condensing |
| Operating voltage | 100..120 V/ 220..240 V AC 50..60 Hz (auto detect) |
| Power consumption | Typ. < 100 W, max. 300 W |
| *With SYS DC110. Higher bandwidth feasible with HF modulation option DL-MOD. **With SYS DC 110 driver electronics. | |
Thermal frequency tuning of a DL DFB BFY diode laser @ 1530 nm.
Current tuning of a DL DFB BFY diode laser.
Options & Related Products
Options & Related Products
- Fiber output (FC/APC) or fiber connector port
- High frequency modulation PCB: DL-Mod/DFB
The DL-Mod PCB features two input ports:- DC-coupled input port: Bandwidth 50 MHz
- AC-coupled input port: can be configured either as modulation input with a bandwidth of 100 kHz - 50 MHz, or as a bias-T with approx. 300 MHz bandwidth.
- Additional fiber inline isolator (upon request)
Related Products:
- DL DFB: Distributed feedback laser for TO-9mm or TO3 packaged diodes
- dfBeam: OEM laser module for Raman spectroscopy and interferometry
- DL 100: Economic Littrow type ECDL in modified Hänsch design
- DL 100 / pro design: Tunable, ultra-stable ECDL
- DL pro: pro series ECDL with exceptional AR laser diodes
- BoosTA: Stand-alone semiconductor amplifier
- Lasers for cw terahertz generation
Technical Drawings
Applications
Applications
Compact size and robust performance, combined with wide frequency tunability and superior long-term stability – these are just a few arguments why the DL DFB BFY is the system of choice for
- Gas sensing (e.g. ammonia, methane, acetylene),
- Interferometry,
- Optical communication,
- Amplifier seeding,
- Generation of tunable cw terahertz radiation.
Application Notes:
Download
Download
toptica_BR_SC_TDL.pdf






