LT-25-M光發(fā)射機(jī)
25 GHz 帶寬光發(fā)射機(jī)模塊LT-25-M
LT-25-M是25GHz 帶寬光波發(fā)射機(jī)模塊，是為RF over fiber、天線遙控和寬帶RF傳輸應(yīng)用而設(shè)計(jì)的。
產(chǎn)品評(píng)論：
LT-25-M是25GHz 帶寬光發(fā)射機(jī)模塊，是為RF over fiber、天線遙控和使用單模光纖寬帶RF發(fā)射應(yīng)用而設(shè)計(jì)的。這個(gè)模塊使用了低噪聲、窄線寬、1550nmDFB激光二極管作為連續(xù)光源。寬帶的LiNbO3光學(xué)調(diào)制器用于提供線性調(diào)制能力，可達(dá)到30GHz調(diào)制帶寬。這個(gè)外部調(diào)制發(fā)射器設(shè)計(jì)提供了高無(wú)假響應(yīng)動(dòng)態(tài)范圍和高的輸入截止點(diǎn)性能。當(dāng)由寬帶調(diào)制器驅(qū)動(dòng)器驅(qū)動(dòng)時(shí)，這個(gè)LT-25-M也能夠用于數(shù)字傳輸。
DFB激光器的溫度穩(wěn)定性使用一個(gè)內(nèi)部TEC來(lái)控制。光學(xué)調(diào)制器由一個(gè)高精密偏置控制器控制，確保操作設(shè)置到正交。這個(gè)設(shè)計(jì)使LT-25M提供最低的畸變和寬的調(diào)制帶寬。發(fā)射機(jī)由RS-232串口提供狀態(tài)監(jiān)測(cè)。
應(yīng)用：
光通訊到25Gb/s
光纖寬帶RF傳輸
RF/IF信號(hào)分布
天線遙控
光學(xué)延遲線
衛(wèi)星通訊
特征：
可用的帶寬達(dá)到30GHz
高線性模擬傳輸
高無(wú)假響應(yīng)動(dòng)態(tài)范圍
低RIN、窄線寬DFB激光器
具有20GHz帶寬的LiNbO3可選擇調(diào)制器
RS-232接口狀態(tài)監(jiān)測(cè)
|
Feature Name |
Description |
|
General Specifications |
|
|
Operating Wavelength |
1550 nm ± 10 nm, ITU wavelength available |
|
Optical Output Level |
+4 dBm to +8 dBm |
|
Optical Return Loss |
50 dB min. |
|
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 |
26 dBm max. |
|
Analog Specification |
|
|
Modulation Bandwidth |
0.01 to 30 GHz |
|
1 dB comp. Level |
+25 dBm typ. |
|
Input IP3 |
26 dBm @ 10 GHz |
|
2nd Harmonics Distortion |
-70 dBc typ. |
|
Min. RF Link Gain @ 2 GHz |
-18 dB |
|
Min. RF Link Gain @ 20 GHz |
-23 dB |
|
RF Link Gain @ 25 GHz |
-31 dB |
|
IM3 Distortion |
< -90 dBc max. |
|
Digital Applications |
|
|
Modulation Bandwidth |
Up to 25 Gb/s |
|
Data Format |
NR, RZ |
|
Drive Voltage Requirement |
7.5 V p-p |
|
Mechanical Specifications |
|
|
Operating Temperature |
-40° C to +70° C |
|
Storage Temperature |
-55° C to +85° C |
|
Power Supply Requirements |
+12 V DC, 2 A max. |
|
Optical Connector |
SC/APC, FC/APC Optional |
|
RF Input Connector |
K-Connector Female, 50 Ω |
|
DC Connector |
DB-15 |
|
Local Alarm |
LED: Optional Input Power |
|
Remote Alarms |
RS-232 Interface (Optional) |
|
Dimensions |
208 mm x 108 mm x 30 mm |
|
Accessories Included |
110 V - 240 V AC Adaptor and RS-232 Cable |
|
Housing |
Precision Machined Aluminum, Anodized |
|
