Abstract: A method of performing eye safety measurements on laser devices is disclosed. The laser is contained within a housing having a central bore. The method uses an optical detector having at least two zones to make separate measurements of both a direct power coming from the laser and an indirect power reflected off of the central bore. The first zone measuring the direct power is smaller than the second zone measuring the indirect power. The measurement of the first power is then used to adjust the power of the laser to be within a specified optical standard, such as the class 1 standard. In one exemplary embodiment, the laser is an 850 nanometer Vertical Cavity Surface Emitting Laser (VCSEL).

Abstract: An optical test apparatus. The test apparatus includes an optical source. A first optical switch is connected to the optical source. An attenuated responsivity test path may be selectively coupled to the first optical switch. A return loss test path may alternatively be selectively coupled to the first optical switch. A second optical switch may be selectively coupled to the attenuated responsivity test path or the return loss test path. An optical splitter is connected to the second optical switch. The optical splitter is configured to connect to a ROSA. A detector is connected to the optical splitter. The detector is configured to connect to a test meter.

Abstract: Optical test apparatus. A test apparatus for testing transmitter or receiver devices. The test apparatus includes a transmitter source configured to connect to an optical transmitter. A wide band, wide area optical detector is adapted to optically couple to the optical transmitter powered by the transmitter source. A filter is connected to the optical detector. The filter is configured to separate AC and DC portions of a signal received from the optical detector. A true RMS converter is connected to the filter. The filter is configured to convert an AC noise signal received from the filter to a function of an RMS value of the AC noise signal received from the optical detector. A data acquisition system is connected to the true RMS converter. The data acquisition system is configured to characterize noise characteristics of the transmitter source.

Abstract: A test module for establishing a releasable electronic connection to at least one radially arranged electrical lead of an electronic component is disclosed. The test module can include an elongate housing having a distal end and a proximal end, and a set of pivotal contact clamps for establishing a releasable electrical connection to the leads of an electrical component located at the proximal end of the elongate housing. The leads of the electrical component are radially arranged about a center point of the electrical component and at least one lead is located at a different radial distance from the center point of the electrical component.

Abstract: A true RMS conversion circuit. A test apparatus includes a transmitter source including AC and DC supplies. The transmitter source can connect to a transmitter. The test apparatus includes an optical receiver to receive optical signals from a transmitter coupled to the transmitter source. The optical receiver includes an amplifier with a differential output. The test apparatus also includes a matching networks connected to a high and low outputs. Also included in the test apparatus are filters connected to the matching networks. The filters are designed to separate AC and DC signals. An RMS conversion circuit is connected to the filters such that the RMS conversion circuit receives AC signals from the filters. The RMS conversion circuit converts the AC signals to a DC function of the RMS value of the AC signals. A data acquisition system is connected to the RMS conversion circuit to receive the function of the RMS value of the AC signals.