HP 8168E Tunable Laser Source

The HP 8167B, HP 8168D, HP 8168E, and HP 8168F are high performance tunable laser sources for the characterization of optical devices over wavelength. They are available in various configurations for the best possible match to the most common applications. The HP 8168E tunable laser source provides 1475–1575 nm tuning range and 0 dBm output power.

[ Features ]

Fast and simple set-up of wavelength and power by direct and independent selection of each parameter
Accurate, stable and repeatable wavelength tuning with 1pm tuning linearity and 100MHz stability over hours
True single-mode laser line and low source spontaneous emission with up to 50dB sidemode suppression
Excellent flatness of output power over wavelength for constant and stable power levels over the selected tuning range

[ Specifications ]

Wavelength range: 
1475 nm to 1575 nm

Absolute wavelength accuracy, typ. [1]: 
±0.1 nm

Relative wavelength accuracy: 
±0.035 nm, typ. ±0.001 nm [2]

Wavelength resolution: 
0.001 nm, 125 MHz at 1550 nm

Wavelength stability (typ., over 1 hour at constant temperature): 
< ±100 MHz

Wavelength repeatability: 
±0.035 nm, typ. ±0.001 nm [2]

Sidemode suppression ratio, typ. [3]: 
>40 dB (1500–1570 nm at 0 dBm)

Source spontaneous emission [4]: 
< -45 dB/0.1 nm (1500–1570 nm)
< -35 dB/0.1 nm (1475–1575 nm)

Relative intensity noise (RIN, typ.): 
< -145 dB/Hz

Linewidth (typ.), coherence control off: 
100 KHz

Effective linewidth (typ.), coherence control on: 
50–500 MHz (1500–1570 nm)

Tuning speed (typ. for a 1/10/100 nm step) [5]: 
200 ms (250 ms with #003)/300 ms/2 s

Output power: 
> +1 dBm peak typ.
> 0 dBm (1500–1570 nm)
> -10 dBm (1475–1575 nm)

Output power for #023/#003/#007/(#023 and #003) [5]: 
reduce by 1 dB/1.5 dB/1 dB/2.5 dB respectively

Minimum output power/with #003 [5]: 
-10 dBm/-50 dBm

Power linearity/with #003 [5]: 
±0.1 dB/±0.3 dB

Power stability (over 1 hour): 
±0.03 dB (typ. ±0.01 dB)

Power repeatability (typ.): 
±0.04 dB

Power flatness versus wavelength/with #003 [5]: 
±0.1 dB/±0.2 dB


[1] Measured with wavelength meter in vacuum.
[2] Performance when controlled with appropriate wavelength meter.
[3] Measured by heterodyning method.
[4] At maximum specified output power. Measured with optical spectrum
    analyzer at 0.1 nm resolution bandwidth.
[5] Listed options are described in section "Ordering."

[ Ordering ]

HP 8168E Tunable Laser Source 1550 nm, +0dBm Opt 003 Built-in attenuator Opt 007 Polarization-maintaining Panda fiber Opt 021 Straight contact output connector Opt 022 Angled contact output connector Opt 023 Angled non-contact output connector

[ Key Literature ]

HP 8167B, HP 8168D, HP 8168E and HP 8168F Tunable Laser Sources - Configuration Guide
Tunable Laser Sources HP 8167B, HP 8168D, HP 8168E, HP 8168F - Product Note
Tunable laser Sources

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[ Assistance ]

To help you make the right instrument choices

Local Sales Office

[ Related ]

Related product families available online:

Tunable Laser Sources