The LP-CATV-15-10-0-A is a high-performance Y-Branch Balanced Bridge Modulator (YBBM) specifically designed for 1550nm CATV transmission systems and advanced optical sensing. By integrating a traveling-wave phase modulator into a Mach-Zehnder interferometric structure, it provides superior linearity and stability for analog signal modulation.
Key Architecture The device features a unique dual-output configuration, utilizing a balanced bridge design to provide complementary optical signals. This architecture is critical for reducing common-mode noise and enhancing the dynamic range in high-fidelity fiber optic links.
1. General Specifications
Parameter | Symbol | Unit | Range | Typical Value |
Crystal Material | - | - | - | Lithium Niobate (LiNbO3) |
Crystal Orientation | - | - | - | X-cut, Y-propagation |
2. Optical Performance
Parameter | Symbol | Unit | Range | Typical Value |
Operating Wavelength |
| nm | Typ | 1550±10 |
Insertion Loss | IL | dB | Typ | 4.5 |
Output IL Balance | ΔD | dB | Typ | 1.0 |
Extinction Ratio | R | dB | Typ | 20 |
Optical Return Loss | RL | dB | Min | -45 |
Max Input Optical Power | Pmax | mW | Max | 100 |
3. Electrical Performance
Parameter | Symbol | Unit | Range | Typical Value |
DC Half-wave Voltage | Vπ(Phase) | V | Max | 8.5 |
Operating Bandwidth | BW (Phase) | GHz | Typ | 2.5 |
Electrical Return Loss | S11 (Phase) | dB | Max | -8.5 |
Input Impedance | R (Phase) | Ohm | Typ | 50 |
RF Power | Pmax (Phase) | dBm | Typ | 30 |
4. Intensity Modulator - RF Port
Parameter | Symbol | Unit | Range | Typical Value |
Half-wave Voltage @100MHz | Vπ(RF) | V | Max | 6.0 |
Operating Bandwidth | S21 | MHz | Typ | 40 ~ 860 |
Amplitude Flatness | - | dB | Typ | ±0.5 |
Phase Flatness | - | ° | Typ | ±5 |
Electrical Return Loss | S11(RF) | dB | Max | -18 |
Optical Output Phase Diff. | - | ° | Typ | 0.26 |
DC Voltage | Vmax (RF) | V | Typ | 0 |
RF Power | Pmax (RF) | dBm | Typ | 24 |
5. Intensity Modulator - Bias Port
Parameter | Symbol | Unit | Range | Typical Value |
Half-wave Voltage Vπ, DC | Vπ (Bias) | V | Typ | 5.0 |
Electrode Resistance | R (Bias) | Ohm | Typ | 10k |
π/2Bias Voltage @1550nm | - | V | Typ | ±3V |
DC Voltage Limit | Vmax (DC) | V | Max | ±15V |
6. Mechanical & Environmental
Parameter | Symbol | Unit | Range | Typical Value |
Package Type | - | - | - | - |
Mechanical Dimensions | - | mm | Typ | 119.4 X 22.9X9.4 |
Input Fiber | - | - | - | Corning PM Fiber |
Output Fiber | - | - | - | Corning SM Fiber |
Fiber Length | L | cm | Typ | 80 |
Operating Temperature | Tw | °C | - | -5 ~ 70 |
Storage Temperature | Ts | °C | - | -40 ~ 80 |
