Integrated Kit Teaches Fourier Optics
Jul 2008Cambridge CorrelatorsRequest Info
• 1280 × 720-pixel spatial light modulator
• 635-nm fibre laser diode
• research, educational applications
Fourier optics is a specialized mathematical area of physics that is used by manufacturers and researchers to model optical systems and components. The new Fourier Optics Experimenter kit from Cambridge Correlators Ltd. helps students and researchers gain familiarity with and take advantage of the potential of this field. In the physics or engineering laboratory, the kit teaches topics such as far-field diffraction, the properties of Fourier transform, Huygen’s wave principle and Bessel functions.
It consists of a compact single-stage optical system mounted on a breadboard to provide easy access to the devices and components. Its Fourier transform engine incorporates a spatial light modulator, a CMOS camera and a laser diode. The 8-bit, 1280 × 720-pixel liquid crystal modulator has 9.5-μm pitch and a nominal response time of 10 ms. Its refresh rate is 120 Hz. The camera runs at up to 200 fps and has 640 × 480 pixels, a Gigabit Ethernet interface and an output grey-scale resolution of 10 bits.
The single-mode pigtail fibre laser diode has a wavelength of 635 nm and a variable power output. Configured to work as a two-stage device, the engine acts as a joint transform correlator for pattern matching on large data sets.
The basic system is housed in a half-length rack box, and a stand-alone version with an integrated PC is available.