81624A Keysight Ge optical head, 5mm diameter

Features.

• Large area InGaAs sensors

• Optical range of 800 to 1700 nm

• Power range of +10 dBm to -90 dBm

The Agilent 81624A optical heads are designed for low PDL, low spectral ripple, and high return loss. These optical heads interface with single (Agilent 81618A) or dual (Agilent 81619A) modules. They are used in the optical wave host models 8163A/B, 8164A/B, and 8166A/B.

Agilent's current production model is the 81624B. The following is Agilent's description of the differences between these two models.

What is the difference between the 8162xA and 8162xB optical heads?

Most of the features of the 8152x optical head were retained when Agilent Technologies first introduced the 8162xA series of optical heads. However, the 8162xA optical head did not have an available analog output. 8162xB models, with the exception of the 81625B (now replaced by the 81626B), offer an analog output on the optical head.

In addition, a number of specifications have been added. For example, the 81623B now has a specification that varies with polarization power. 81623A does not.

The main difference is that the 8162xB models (except the 81625B) offer analog outputs, while the 8162xA does not. All of the features offered by the 8162xA are available on the corresponding B models.