Electro-optic and Optical Ancilliaries
Vescent Accessory Modules
Vescent optical and electro-optical modules are designed to provide rugged, vibration immune operation in a small foot print. Innovative uses of liquid crystal and waveguide technologies provides functionality that was previously only realised mechanically. Vescent modules are designed to be mutually compatible, allowing the user to take advantage of Vescent’s non-mechanical approach to design sophisticated AMO experiments in a uniquely small optics-table footprint.
D2-210 Saturated Absorption Spectroscopy Module |
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The D2-210 second-generation Spectroscopy Module makes locking to atomic transitions easier and more powerful than ever before. Completely redesigned to maximise performance in a number of laser-locking environments, the D2-210 makes atomic absorption-referenced frequency locks simple. Designed to work as a general-purpose frequency discriminator, it is compatible with the D2-125 Reconfigurable Servo as well as other feedback loop filters. |
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D2-160 Beat Note Detector Module |
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The D2-160 high-speed detector has a full 9 GHz bandwidth for capturing beat notes between lasers of different frequencies. It can also capture fast rising edges of laser pulses for timing, triggering, and pulse synchronisation. |
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D2-250 Heterodyne Module |
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The new D2-250 heterodyne module is designed to deliver an optical beat note to the D2-135-FC Offset Phase Lock Servo (OPLS). The OPLS compares the divided-down beat note with either an internal or user-supplied reference signal and locks the Slave Laser tightly to maintain the desired offset. The new kinematic adjustment feature of the D2-250 makes co-aligning master and slave lasers faster and easier than before, while the use of rotatable waveplates at the inputs and polarising beam splitters allows adjustment of pick off percentage for accepting a large range of powers. The unit itself only requires a tiny fraction of the total laser power from the two lasers. |
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D2-130 Isolator Module |
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The isolator module contains a 35 dB isolator and ½-waveplate in a rugged and compact package. The beam height matches other D2-series modules. |
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D2-120 Fibre Coupling Module |
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The D2-120 is designed to facilitate coupling of a laser beam into either single or multimode optical fibre. The module incorporates a 35 dB optical isolator prior to the fibre facet to reduce optical feedback. |
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