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Variable Optical Delay Line Module – Switching Based
Turn-key solution with N-bit high resolution and lossless optionThis N-bit (N ≥ 10) Photonic Time Delay Module selectively routes optical signals through N fiber segments with the different lengths. Each fiber segment is defined to have the delay as
Where dT is the increment of time delay.
Therefore, the module provides N-bit of digitally variable time delay, having the total time delay as
N and dT can be defined by customer.
The EDFAs is used in the module to compensate the optical loss through optic fiber segments and switches. The optical loss between the optic fiber segment and the bypassing path is balanced internally to get the excellent uniformity of optical power between different time delays in long time delay ranges.
Variable Optical Delay Line Module - Switching Based
This N-bit (N ≥ 10) Photonic Time Delay Module selectively routes optical signals through N fiber segments with the different lengths. Each fiber segment is defined to have the delay asWhere dT is the increment of time delay.
Therefore, the module provides N-bit of digitally variable time delay, having the total time delay asN and dT can be defined by customer.
The EDFAs is used in the module to compensate the optical loss through optic fiber segments and switches. The optical loss between the optic fiber segment and the bypassing path is balanced internally to get the excellent uniformity of optical power between different time delays in long time delay ranges. | N-bit Photonic Delay Module | Min | Typical | Max | Unit | |
| Wavelength band | 1535 | 1550 | 1565 | nm | |
| Insertion Loss [1] | 0 | 0.5 | dB | ||
| Cross Talk | 25 | 30 | 40 | dB | |
| Switching Time | CL type | 50 | 100 | µs | |
| NS type | 150 | 300 | ns | ||
| Repetition Rate [2] | CL type | 2 | kHz | ||
| NS type | 100 | kHz | |||
| Delay Time Range [3] | 0.05 | TBD[4] | ns | ||
| Polarization Dependent Loss | 0.25 | 0.5 | dB | ||
| IL Uniformity [5] | 1.0 | 1.5 | dB | ||
| Return Loss | 50 | dB | |||
| Operating Temperature | 0 | 60 | oC | ||
| Optical Power Handling | 0 | dBm | |||
| Storage Temperature | -40 | 85 | oC | ||
| Fiber Type | SMF-28 | ||||
| Package Dimension [6] | 19” mount rack | ||||
[1]: Defined at the input power from -10dBm to 0dBm
[2]: Defined in each switch.
[3]: The minimum delay can be as short as 0.01ns if needed, please contact us.
[4]: The maximum delay is defined by the bit number and delay increment.
[5]: Between the different time delays
[6]: The height of 19” mount rack will be determined by the total time delay.
