LightWave Systems Microwave Oven Silicon Power / Wavehead User Manual download pdf (Page 26)

OPERATION

General Operating Procedures

10 OMH-6722B

CHAPTER 2

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Diverging Beams (Laser Diodes)

The OMH-6722B can measure the wavelength and power of laser diodes without

the need for complicated coupling optics. For low powered lasers and laser

diodes, position the package as close as possible to the 6722B to insure that all of

the light enters the integrating sphere.

Collimated Beams

The OMH-6722B is capable of measuring the wavelength and power of narrow

beam lasers. As with other lasers, collimated beams should enter the aperture

perpendicular to the face of the 6722B. To maintain accuracy, do not allow the

beam to strike the edge of the entrance aperture.

Focused Beams

The OMH-6722B also accepts converging beams. In high power applications be

sure that the focus of the beam does not occur at the rear of the integrating

sphere. Again, perpendicular beam entry to the Head is required.

Fiber Optic Cable

A fiber optic adapter (options AO271, AO272, AO273, and AO276,) can be

mounted onto the face of the OMH-6722B Measurement Head. This threaded

ring/adapter cap option accepts a variety of fiber optic connector styles for direct

coupling of a fiber optic cable to the head.

Measuring or Setting the Wavelength

For automatic wavelength compensation of power measurements, press the

WAVELENGTH

AUTO button so that the indicator above the button is lighted. The

wavelength of the source can also be manually programmed into the OMM-6810B

using the procedure below.

Figure 2.5 Wavelength Setting

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LightWave Systems Microwave Oven Silicon Power / Wavehead User Manual Page 26