BoosTA pro

High power tapered amplifier system
The BoosTA pro, TOPTICA’s optical amplifier, increases the output power of a DL pro or any other linearly polarized master laser by up to 20 dB (x100).
Following TOPTICA’s well-established pro-technology, a TA chip is mounted in a compact unit with optimized heat management and beam-shaping optics. BoosTA pro is operated with our all-digital driver electronics DLC pro and can work with currents up to 5A and 7A (DLC BoosTA pro HP).  BoosTA pro can be conveniently operated together with a DL pro, DFB pro or CTL master laser with one DLC pro.
The BoosTA pro head includes a high-bandwidth current modulation board, which – when used in a closed feedback loop – allows for compensating power fluctuations of the master laser by adjusting the amplifier gain. The board also features a protective circuit to avoid the risk of electronic chip damage. The beam management of the seed laser can be greatly simplified by optional fiber input coupling. Other options are optical isolators and fiber output coupling. The BoosTA pro head has sufficient space for a 60 dB isolator to protect the TA chip from back reflections.
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Your Benefits

High power for quantum applications
A large selection of tapered amplifier chips enables high powers across a wide wavelength range from 632 nm to 1590 nm. Tapered amplifiers increase the power of our excellent narrow linewidth diode lasers to multi-Watt levels. 
Low noise & drift
Low noise electronics and a stable mechanical design ensure low noise & drift. Due to the single pass amplificaton, the spectral properties of the master are preserved, while the power is amplified. Low noise current drivers in DLC pro make sure that RIN behind the amplifier is minimal. 
Flexibility by modular design
The amplifier head and electronics are very flexible by design and can be extended by many options and modifications. 
Laser locking/stabilization electronics can be used to reduce frequency noise of the master lasers, power drift and RIN for the amplifier. It is also possible to remotely control master laser and amplifier digitally as well as analogly. The digital nature of the DLC pro controller can be exploited using a powerful SDK. Various different master lasers can be combined and amplified - both from one DLC pro controller. Fiber coupling is optional for the input and optical output beam.
Reliable stability
A sophisticated thermal and mechanical design ensures maximum stability and reliability. The laser housing is machined from a solid metal block, ensuring stable positioning of optical elements and protection from the environment. Optimized mounting and heat sinks for active elements ensure stable temperature and operation. The excellent passive stability can be complemented by active stabilization for stable output power. Laser diodes and amplifier chips are constantly improved and tested for high output powers and long lifetimes.

Applications

Atom laser cooling & trapping
Ion laser cooling & trapping
Quantum computing & simulation

Options

Single stage optical isolation
Isolators are used to protect the laser diode from back reflections. This not only prevents damage to the diode but also ensures untroubled single-mode operation and tuning. Fiber coupling with angle polished fibers (both ends) requires at least a single stage isolator.
Dual stage optical isolation
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.
Fiber delivery
Fiber Delivery (FD) is optionally available with TOPTICA's patented fiber coupler FiberDock and a suitable polarization maintaining (PM) fiber. FiberDock provides highest single-mode fiber coupling efficiencies, easy alignment and at the same time highest stability. For most lasers, we specify a PER behind fiber of >20 dB with our Fiber Delivery option. Please also inquire about Long Life and High Power fibers as well as fiber splitters. Optical isolation is mandatory for fiber coupled diode laser systems.

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