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81680A Tunable Laser for the test of critical dense-WDM components

Agilent 81680A

Wavelength range 1460 nm to 1580 nm

Wavelength resolution 0.1 pm, 12.5 MHz at 1550 nm

Mode-hop free tuning range full wavelength range

Absolute wavelength accuracy

[1] [2]

±0.01 nm

Relative wavelength accuracy

[1] [2]

±5 pm, typ. ±2 pm

Wavelength repeatability

[2]

±1 pm, typ. ±0.5 pm

Wavelength stability

(typ., 24 h at const. temp.)

[2]

≤ ±1 pm

Tuning speed (typ. for a 1/10/100 nm step) 400 ms/ 600 ms/ 2.8 s

Linewidth (typ.), coherence control off

Effective linewidth (typ.), coherence ctrl. on

100 kHz

> 50 MHz (1480 –1580 nm, at maximum flat output power)

Output 1 (low SSE) Output 2 (high power)

Output power

[3]

(continuous power during tuning)

≥ –4 dBm peak typ.

≥ –6 dBm (1520 –1570 nm)

≥ –10 dBm (1480 –1580 nm)

≥ –13 dBm (1460 – 1580 nm)

≥ 6 dBm peak typ.

≥ 5 dBm (1520 – 1570 nm)

≥ 1 dBm (1480 – 1580 nm)

≥ –3 dBm (1460 –1580 nm)

Minimum output power

[3]

–13 dBm –3 dBm

(–60 dBm in attenuation mode)

Power stability

[3] [9]

±0.01 dB, 1 hour

typ. ±0.03 dB, 24 hours

Power repeatability (typ.)

[3]

±0.01 dB

Power linearity

[3]

±0.1 dB ±0.3 dB

Power flatness versus wavelength

[3]

±0.2 dB, typ. ±0.1 dB ±0.3 dB, typ. ±0.15 dB

Side-mode suppression ratio (typ.)

[4] [8]

≥ 40 dB (1480 – 1580 nm)

Signal to source spontaneous emission ratio

[5] [8]

≥ 63 dB/ nm

[7]

(1520 – 1570 nm)

≥ 58 dB/ nm

[7]

(typ., 1480– 1580 nm)

≥ 53 dB/ nm

[7]

(typ., 1460 – 1580 nm)

≥45 dB/ nm

(1520 – 1570 nm)

≥ 40 dB/ nm

(1480 –1580 nm)

≥ 35 dB/ nm

(1460 – 1580 nm)

Signal to total source spontaneous emission ratio

[6] [8]

≥ 60 dB

(1520 – 1570 nm)

[7]

≥ 50 dB

(typ., 1460 – 1580 nm)

[7]

≥ 30 dB

(typ., 1520 – 1570 nm )

Relative intensity noise (RIN, typ.)

[8]

–145 dB/Hz (1480 – 1580 nm)

[1]

Valid for one month and within a ±5 K temperature range after automatic wavelength zeroing.

Wavelength Zeroing is an internal function that performs an automatic self-adjustment.

[2]

At CW operation. Measured with wavelength meter based on wavelength in vacuum.

[3]

Applies to the selected output.

[4]

Measured by heterodyning method.

[5]

Measured with optical spectrum analyzer at 1 nm resolution bandwidth.

[6]

Measured with optical spectrum analyzer.

[7]

Measured with Fiber Bragg Grating to suppress the signal.

[8]

Output power as specified per wavelength range and output port.

[9]

Warm up time 1 hour

1 2 3 4 5 6 7 8 9 10

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