- Tunable diode laser in patented pro design
- Ultra-stable against temperatures & acoustics
- With digital control DLC pro: Superior performance and remote control
- Linewidth down to 10 kHz free running
- Linewidth below 1 Hz possible with lock to external reference cavity
Our DL pro is the ultimate tunable diode laser. Its revolutionary mechanical design allows for both easy operation and extreme stability at the same time. It offers highest output powers, and optimized mode-hop-free tuning with a perfectly positioned virtual pivot point for the grating movement (Patents: DE 10 2007 028 499 and US 7970024). Together with the digital control DLC pro controller it shows unrivalled linewidth and drift – with the most comfortable and intuitive user interface. A software license may be purchased to enable frequency-locking features.
The DL pro HP diode laser features a special resonator design, which allows for higher single-mode output powers from "visible" laser diodes. Like the DL pro, it is an extended cavity diode laser (ECDL). Both lasers feature various modulation inputs and may be equipped with various options like fiber coupling, beam shaping etc.
The DL pro is available with all laser diodes listed in our stocklist of AR-coated and Fabry-Perot laser diodes. An overview of the resulting wavelength coverage is shown in the Additional Information below.
We provide a number of TopSellers representing direct solutions for typical applications such as laser cooling of atoms or ions. These systems combine a DLC pro and either a DL pro or DL pro HP including an appropriate isolator. They may be combined with fiber coupling and the software license enabling frequency-locking features
DLC DL pro TopSellers are available at these wavelengths:
850, 780, 670, 633 nm.
DLC DL pro HP TopSellers are available at these wavelengths:
637, 461, 420, 399, 397, 369 nm.
DLC DL pro DLC DL pro HP Wavelength coverage 369 .. 519 nm *, 628 .. 1770 nm * 369 .. 519 nm *, 633 .. 641 nm Typical power range 10 .. 300 mW 15 .. 110 mW after the isolator Typical coarse tuning range 2 .. 100 nm 2 .. 5 nm Typical mode-hop free tuning range ≥ 20 GHz Typical linewidth (5 µs integration time) 10 .. 300 kHz 150 .. 500 kHz
Additional Top Seller
DLC DL pro ...
Typical Applications Cs cooling, Ca ion repump Rb cooling and repump, K cooling and repump Li cooling and repump NV center, Yb ion clear out laser HeNe laser wave-
Sr cooling, Cs Rydberg,
Ca cooling, Sr ion cooling, Rb Rydberg Yb cooling Ca ion cooling Yb ion cooling Peak power (mW) after the isolator, specified (typical) 70 (75)* 105 (130)** 25*** 45 (50) 40 170 70 110 65 13 Wavelength (nm) 840 - 875 765 - 805 660 - 673 635 - 639 631 - 635 457 - 461 420 - 423 399 - 400.5 396.5 - 398.5 369.2 - 370.2
- Additional Information
With this option DL pro laser systems are optimized for narrow linewidths. It is also suited for seed lasers of TA or NLO systems as well as lasers of Laser Rack Systems but not for DL pro HP lasers. Fiber Coupling
TOPTICA’s patented fiber coupler provides highest single-mode fiber-coupling efficiencies, easy alignment and at the same time highest stability. Fiber coupling efficiency of > 55% is specified for all DL pro, beam shaping optics are included if needed. TOPTICA additionally offers a wide range of single-mode and polarization-maintaining fibers, including fiber-optic beam splitters. Optical isolation is mandatory for fiber-coupled diode laser systems. Optical Isolation
Isolators are used to protect the laser diode against back reflections. This not only prevents damage to the diode but also ensures untroubled tuning and single-frequency operation. Fiber-coupling with angle-polished fibers (both ends) requires at least a single-stage isolator (> 30 dB). Double-stage isolators are needed if reflections from the experiment into the laser are expected. Fiber-coupling with non-angle-polished fibers also requires a double-stage isolator (> 60 dB). Beam Shaping
To shape elliptical laser beams into round profiles, either an anamorphic prism pair (APP) or cylindrical lenses are used. The compression ratio is set at the factory. Motorization
The motorization of the coarse tuning offers manual control and operation via software interface. This option is available for most DL pro laser systems (most AR laser diodes and some FP diodes) including DL pro HP laser systems. See Downloads section below. Bias-T
The DL pro (HP) has two modulation inputs that allow current modulation frequencies of up to 150 MHz. A Bias-T allows even higher current modulation frequencies of up to several GHz, depending on the diode. It is also suited for seed lasers of TA or NLO systems. Electronics Modules A broad variety of electronic locking modules is available for frequency stabilization.
- Atom Laser Cooling & Trapping
- Ion Laser Cooling & Trapping
- Degenerate Fermi Gases
- Optical Clocks
- Rydberg Excitation (Rydberg Flyer for complete laser solutions)
- Optical Pumping & EIT
- Fundamental Constants
- Quantum Cryptography
- Quantum Information
- Quantum Dots & Microcavities
- Magnetic Field Measurement
- For software updates and Python support of the digital laser controller please see the Downloads section on the DLC pro page.
- Mot / DL pro Software Version 1.15b: Free download of the latest MOT / DL pro software for DL pro equipped with the motorization option. The software consists of sample VIs for computerized motor control. Some VIs have been compiled to run without a LabView installation. The software is provided "as is" as an example for integrating the motor in an experiment or setup.
- Product Brochure: Tunable Diode Lasers
- Technical Drawings: DL pro (standard laser head)
This laser head is used for all TopSellers and all DL pro HP as well as most configured DL pro.
- Technical Drawings: DL pro (long laser head)
This longer housing is used if additional space is needed to fit the optical components into the laser head.
Application notes and publications
- Article: Lang, M. et al., Digital Revolution in Laser Control, Physics' Best (2014)
- Article: Lang, M. et al., Rauscharme Revolution, Best of (2013)
- Article: Lang, M. et al., Digitale Bedienkonzepte halten Einzug ins Laserlabor, LASER (2014)
- Application Note: Biomagnetic measurements benefit from laser know-how
- Application Note: 12 Orders of Coherence control
- Application Note: Temperature measurements above the Arctic
- Application Note: Trapping and quantum computing
- Scientific Publications: B. Sprenger et al., CaF2 whispering-gallery-mode-resonator stabilized-narrow-linewidth laser; Opt. Lett. 35, 17 (2010)
- Scientific Article (using DL pro stabilized to < 1 Hz linewidth): T. Puppe et al., Characterization of a DFG comb showing quadratic scaling of the phase noise with frequency, Optics Letters Vol. 41, Issue 8 (2016)
Current scientific publications mentioning TOPTICA DL pro
- MDL pro: Rack integration of DL pro, also as part of T-RACK
- DLC pro: All-digital driver electronics
- CTL: Continuously tunable diode laser
- DFB pro: Laser with DFB or DBR diodes
- TA pro: pro series ECDL with tapered amplifier
- BoosTA pro: Semiconductor amplifier for higher powers
- Frequency converted diode lasers: Extending the wavelength coverage of ECDLs
- Fiber Dock and Optical Fibers: Delivering the light of the DL pro or cleaning its spatial mode
- Laser Locking Electronics: A broad variety is available for frequency stabilization
- Numerous Photonicals, tools and helpful equipment for working with lasers, for example Fabry-Perot Interferometers or Compact Saturation Spectroscopy setups CoSy
- AR-coated Laser Diodes and Fabry-Perot Laser Diodes: See stock list for specifications of available laser power, tuning ranges and laser linewidths of these diodes if operated in a DL pro.