The SSOTD Series Photonic Time Delay provides a variable time delay over a long range up to the millisecond. This is accomplished by selectively routing optical signals through N fiber segments whose lengths increase successively by a power of 2. Since each switching element allows the signal to either connect or bypass a fiber segment, a delay T may be inserted, which can take any value (in increments of DT) up to the maximum value T. This is achieved using non-mechanical configuration and activated via an electrical control signal. Latching operation preserves the selected optical path after the drive signal has been removed. The solid-state configuration eliminates the need for mechanical movement and organic materials.
The device is designed to meet the most demanding switching requirements of ultrahigh reliability and fast response time.
Features
l 6-Bit Resolution or more
l High Speed
l Non-Mechanical
l High Reliability
l Fail-Safe Latching
l Low Insertion Loss
l Low Power Consumption
Applications
l Phase-Array Antennas
l Instrumentation
Specifications
Parameters | Unit | 6 Bit |
wavelength | nm | 1520~1580 or 1280~1340 |
Insertion Loss* | dB | Typ: 0.8 Max:1.5 |
Return Loss | dB | >55 |
Crosstalk | dB | >30 |
Switch Time | us | <150 |
Repetition Rate | KHz | 1 |
Switch Type |
| Latching |
Polarization Dependent Loss | dB | 0.25 |
Fiber Segment Number | Loop | <8 |
Polarization Mode Dispersion | ps | 0.15 |
Polarization Extinction Ratio(PM Fiber) | dB | >22 |
Operation Temperature | ℃ | -5～+70 |
Storage Temperature | ℃ | -40～+85 |
Weight | g | 25 |
Dimension | mm | (L)68.4×(W)17.2×(H)9.5(±0.2) |
*:Loss of each group of bits
Electrical parameters
Parameters | Min. | Typical | Max. | Unit |
Switch Voltage | 4.8 | 5 | 5.5 | V |
Switch Current |
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