| 产 品 说 明 |
| 12GHz带宽光收发机 LTR-12-R系列宽带激光收发机为高线性光学而设计，RF over fiber收发机信号达到15GHz。 基于我们的设计，LTR-12-R包含宽带光发射机和线性接收机，成为一个紧凑的机架式单元。LTR-12-R能够用于携载几乎任何类型的RF调制信号，包括RF over Fiber、卫星/IF、WIMax光学、microwave over fiber和光纤移动信号。使用一个铌酸锂外调制器，LTR-12-R发射口线性地转换输入微波/RF信号到光波，频率范围10MHz到15GHz。使用宽带线性PIN接收器，LTR-12-R接收口转换光波返回到RF/微波信号，带有小的畸变。LTR-12-R在宽的频率范围（± 2.5 dB over 1-12 GHz）保持*的增益平坦性。使用很窄线宽的DFB激光器，在标准的SMF-28光纤中LTR-12-R能够传输达到120km。 应用 RF Transmission over Fiber （RFoG） WiMax 光连接 Microwave over Fiber 光纤移动信号 卫星通讯 特征 可用宽带达到 15 GHz 高线性模拟传输 低RIN、窄线宽的 DFB 激光器 宽带LiNbO3 调制器 具有TIA的线性 PIN 接收器 选择信号口设计容许用一根光纤双向传输 可选择RF放大器增强增益 | Feature Name | Description | | Transmitter General Specifications | | | Operating Wavelength | 1550 nm ± 10 nm, ITU wavelength available | | Optical Output Level | +4 dBm, +8 dBm, +15 dBm （w/ Internal EDFA） | | Optical Return Loss | 50 dB typ. | | Linewidth （FWHM） | 1 MHz max. | | DFB Side Mode Suppression Ratio | 50 dB typ. | | Relative Intensity Noise （RIN） | -145 dB/Hz max. | | Impedance | 50 Ω | | Frequency Response Flatness | ±0.5 dB in any 1GHz bandwidth | | VSWR | 2.0 : 1 max. | | Input Damage Level | 25 dBm max. | | Receiver Optical Specifications | | | Operating Wavelength | 1250 nm to 1650 nm | | Optical Input Level | +3 dBm max. | | Repsonsitivity | 0.85 A/W @ 1550 nm typ. | | Trans-Impedance Gain | 500 typ. | | Group Delay | ±7.0 ps | | Optical Return Loss | -30.00 dB typ. | | 2nd Harmonics Distortion | -70.0 dBc max. | | 3rd Harmonics Distortion | -75.0 dBc max. | | Optical PDL @ 1550 nm | 0.05 dB typ., 0.1dB max. | | Receiver Electrical Specifications | | | Useful Bandwidth | 0.005 GHz to 15 GHz | | S21 3 dB Bandwidth | 11 GHz min., 12 GHz typ. | | S22 Characteristics | < -10 dB to 10 GHz typ. | | Output Coupling | AC Coupled | | RF Impedence | 50 Ω | | Ripple over Bandwidth | ±1.0 dB | | Sensitivity | -19 dBm | | Analog Specifications | | | Useful Bandwidth | 0.01 to 15 GHz | | 1 dB comp. Level | +20 dBm typ. | | Input IP3 | 26 dBm @ 10 GHz | | 2nd Harmonics Distortion | -70 dBc typ. | | RF Link Gain @ 2 GHz* | -18 dB | | RF Link Gain @ 12 GHz** | -23 dB | | IM3 Distortion | < -90 dBc max. | | | *0 dBm Optical Input | | | **5 mW Optical Input | | Digital Specifications | | | Modulation Bandwidth | Up to 20 Gb/s | | Data Format | NR, RZ | | Drive Voltage Requirement | 7.5 V p-p | | Mechanical Specification | | | Operating Temperature | 0° C to +50° C | | Storage Temperature | -10° C to +70° C | | Power Supply Requirements | 80 – 240 V, 43 – 63 Hz AC | | Power Consumption | 110 W max. | | Optical Connector | Two SC/APC for Tx and Rx standard; Optional single connector for bi-direction | | RF Input Connector | SMA Female | | Control/Monitoring | DFB Laser Temperature and Current | | Display | Output Power Level, Tec Temperature | | Local Alarm | Over Temperature , Over Current | | Dimensions | 1U: 19” x 14” x 1.75” | | Housing | Precision Machined Aluminum, Anodized | | |
【光通信仪器】
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