Preface All products are continuously being improved for better performance. Spectrometers have developed in many ways since the introduction of simple and moderately priced spectrophotometers which were commercially available from the mid 1950’s. 1 Such improvements have enabled SCINCO to manufacture PDA type UV-Vis. spectrophotometers. The scope and performance of conventional single channel ...

We demonstrate a flip-chip bonded modified uni-traveling carrier (MUTC) photodiode with an RF output power of 0.75 W (28.8 dBm) at 15 GHz and OIP3 as high as 59 dBm. The photodiode has a responsivity of 0.7 A/W, 3-dB bandwidth > 15 GHz, and saturation photocurrent > 180 mA at 11 V reverse bias.

We demonstrate the first optical waveguide and fastest photodiode implemented in a commercial CMOS technology without performing any post-processing. The measured waveguide loss at 1.55μm is 37dB/cm and bandwidth of photodiode exceeds 9.2GHz at 850nm. OCIS codes: (230.7370) Waveguides; (230.5170) Photodiodes.

introduction: radiation imaging is one of the applicable methods in diagnostic medicine and nondestructive testing for industrial applications. in nondestructive 3d imaging, in addition to the radiation source, there is a requirement for a suitable detection system, data acquisition system, mechanical sections for moving objects, reconstruction algorithm and finally a computer for processing an...

Demand for high-speed dynamic reconfiguration of a programmable device is increasing for raising the performance level of such devices. To support high-speed dynamic reconfiguration, optically reconfigurable gate arrays (ORGAs) have been developed. An ORGA consists of a holographic memory, a laser array, and an optically reconfigurable gate array VLSI. The holographic memory can store many conf...

5 Silicon photodiodes are semiconductor devices responsive to highenergy particles and photons. Photodiodes operate by absorption of photons or charged particles and generate a flow of current in an external circuit, proportional to the incident power. Photodiodes can be used to detect the presence or absence of minute quantities of light and can be calibrated for extremely accurate measurement...

A monolithically integrated receiver consisting of a low-capacitance PIN photodiode and photo-charge integrating amplifier in 0.18- μ m CMOS is introduced launching new class ultra-sensitive optical receivers. The has junction capacitance 1.5 fF at light-sensitive diameter 30 m, responsivity 0....

Promising new research measuring the properties of series photodiode circuits has shown that they may be suitable for retinal prosthesis [1]. Photodiode arrays, in order to be effective in this capacity, must be pulsed with infrared light (∼900nm) at a much higher intensity than ambient light. The light must be infrared for this particular application because light in the visible spectrum may d...

This paper investigates the avalanche photodiode (APD) gain effect on spectral-amplitude coding optical code-division multiple-access (SAC-OCDMA) system using a modified-AND subtraction detection in comparison to the conventional AND detection scheme. Analytical results are presented to investigate the APD gain impact on the bit-error rate (BER) performance. In addition, we confirm the influenc...