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Optical Head Specifications Specifications

Agilent 81618A/9A and Agilent 81622B/3B/4B/6B/7B/8B User’s Guide, Second Edition 27

Optical Head Specifications

All optical heads have to be operated with the single (Agilent 81618A)

or dual (Agilent 81619A) Interface Modules.

Table 2 Optical Head Specifications

Agilent 81623B Agilent 81624B Agilent 81627B

Sensor Element Ge, Ø 5 mm InGaAs, Ø 5 mm InGaAs, Ø 3 mm

Wavelength Range 750 - 1800 nm 800 - 1700 nm 800 - 1700 nm

Power Range +10 to -80 dBm +10 to -90 dBm +10 to -90 dBm

Applicable Fiber Type Standard SM and MM max 100 µm core size, NA ≤ 0.3 Standard SM (max 10 µm core

size), NA ≤ 0.11

(straight and angled

connector)

Standard MM (max 62.5 µm core

size), NA ≤ 0.22

(straight connector)

Open Beam Parallel beam max Ø 4 mm Parallel beam max Ø 2.5 mm

Uncertainty at Reference

Conditions

±2.2%

(1000 to 1650 nm)

±2.2%

(1000 to 1630 nm)

±2.5%

(1000 to 1630 nm)

Tot al U nc e r t a i n t y

±3.5% ± 100 pW

(1000 to 1650 nm)

±3.5% ± 5 pW

(1000 to 1630 nm)

±4.0% ± 5 pW

(1000 to 1630 nm)

Relative Uncertainty

- due to polarization

≤± 0.01 dB

(typ. ± 0.005 dB)

≤± 0.005 dB

(typ. ± 0.002 dB)

≤± 0.005 dB

(typ. ± 0.002 dB)

Spectral ripple

(due to interference)

≤± 0.006 dB

(typ. ± 0.003 dB)

≤± 0.005 dB

(typ. ± 0.002 dB)

≤± 0.005 dB

(typ. ± 0.002 dB)

Linearity (power):

(CW +10 to -60 dBm)

(1000 - 1650 nm)

(CW +10 to -70 dBm)

(1000 - 1630 nm)

(CW +10 to -70 dBm)

(1000 - 1630 nm)

-at 23°C ±5°C<±0.025 dB ± 100 pW

<±0.02 dB ± 5pW <±0.02 dB ± 5pW

- at operating temp. range <±0.05 dB ± 100 pW

<±0.05 dB ± 5pW <±0.05 dB ± 5pW

Return Loss

> 50dB

typ. > 55 dB

typ. 60 dB > 60 dB

Noise (peak to peak)

5, 6

< 100 pW < 5 pW < 5 pW

Analog Output included

Averaging Time (minimal) 100 µs

Dimensions (H x W x D) 57 mm × 66 mm × 156 mm

Weight 0.5 kg

Recalibration Period 2 years

Operating Temperature 0°C to +40°C

Humidity Non-condensing

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 111 112

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Atec Agilent-81618A Manuel d'utilisateur Page 27

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