Fiber optic Laser budget table
A quick and dirty reference chart to output power and receiver sensitivity on a plethora of different optics.
Includes commands on how to get optical transmit and receive powers on various routers and switches.
Optical modules data
| Wavelength | Tx power (dBm) | Rx power (dBm) | Typical power budget | Typical reach | |||
|---|---|---|---|---|---|---|---|
| Min | Max | Min | Max | ||||
| Gigabit Ethernet | |||||||
| GE SX | 850 | -9.5 | -3 | -17 | 0 | 7.5 | ~250m (OM1 – MM 62.5µm) ~500m (OM2 – MM 50µm) |
| GE LX/LH | 1310 | -9.5 | -20 | -3 | 8.5 | 10km (SMF µm) | |
| GE ZX | 1550 | 0 | 5.2 | -24 | -3 | 24 | 80km (SMF 10 µm) |
| 10 Gigabit Ethernet | |||||||
| 10GE LR | 1310 | -8.2 | +0.5 | -14 | +0.5 | 10km (SMF 10µm) | |
| 10GE ER | 1550 | -4.7 | +4.0 | -15.8 | -1 | 40km (SMF 10µm) | |
| 10GE ZR | 1550 | 0 | +4.0 | -24 | -7 | 80km (SMF 10µm) | |
| Packet Over SONET / SDH (POS) OC-3 / STM-1 | |||||||
| OC-3 / STM-1 Multimode SR | 850 | -20 | -14 | -23 | -8 | 7 | 2km (MMF) |
| OC-3 / STM-1 SR | 1310 | -15 | -8 | -23 | -8 | 2km (SMF 10µm) | |
| OC-3 / STM-1 IR-1 | 1310 | -15 | -8 | -28 | -8 | 15km (SMF 10µm) | |
| OC-3 / STM-1 LR-1 | 1310 | -5 | 0 | -34 | -10 | 40km (SMF 10µm) | |
| OC-3 / STM-1 LR-2 | 1550 | -5 | 0 | -34 | -10 | 80km (SMF 10µm) | |
| Packet Over SONET / SDH (POS) OC-12 / STM-4 | |||||||
| OC-12 / STM-4 SR-1 | 1310 | -15 | -8 | -23 | -8 | 2km (SMF 10µm) | |
| OC-12 / STM-4 IR-1 | 1310 | -15 | -8 | -28 | -8 | 15km (SMF 10µm) | |
| OC-12 / STM-4 LR-1 | 1310 | -3 | +2 | -28 | -8 | 40km (SMF 10µm) | |
| OC-12 / STM-4 LR-2 | 1550 | -3 | +2 | -28 | -8 | 80km (SMF 10µm) | |
| Packet Over SONET / SDH (POS) OC-48 / STM-16 | |||||||
| OC-48 / STM-16 SR | 1310 | -10 | -3 | -18 | -3 | 2km (SMF 10µm) | |
| OC-48 / STM-16 IR | -5 | 0 | -18 | 0 | 15km (SMF 10µm) | ||
| OC-48 / STM-16 LR | 1550 | -2 | +3 | -28 | -9 | 80km (SMF 10µm) | |
| Packet Over SONET / SDH (POS) OC-192 / STM-64 | |||||||
| OC-192 / STM-64 SR-1 | -8 | +0 | -11 | +0 | 2km (SMF 10µm) | ||
| OC-192 / STM-64 IR-2 | 1550 | -4 | +4 | -15 | -1 | 15 | 40km (SMF 10µm) |
| OC-192 / STM-64 LR-2 | 1550 | 0 | +4.0 | -24 | -7 | 26 | 80km (SMF 10µm) |
How to check DOM / DDM values on different type of equipment:
| Equipment type | ||
|---|---|---|
| Equipment subtype | Command | |
| Example output | ||
| Cisco 7600 | ||
| All linecards | show interface X/Y transceiver | |
7600#sh inte tenGigabitEthernet 1/1 transceiver Transceiver monitoring is disabled for all interfaces.ITU Channel not available (Wavelength not available),Transceiver is internally calibrated.If device is externally calibrated, only calibrated values are printed.++ : high alarm, + : high warning, - : low warning, -- : low alarm.NA or N/A: not applicable, Tx: transmit, Rx: receive.mA: milliamperes, dBm: decibels (milliwatts). Optical Optical Temperature Voltage Current Tx Power Rx PowerPort (Celsius) (Volts) (mA) (dBm) (dBm)--------- ----------- ------- -------- -------- --------Te1/1 27.5 0.00 50.1 -2.0 -7.8 7600# |
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| Cisco 12000 | ||
| Engine5 SIP-600 | show hw-module subslot X/Y transceiver Z (idprom|status) | |
GSR#show hw-module subslot 10/0 transceiver 0 idpromIDPROM for transceiver POS10/0/0: Description = XFP optics (type 6) Transceiver Type: = OC192 + 10GBASE-L (65) Product Indentifier (PID) = QFCT-7081 Vendor Revision = B2 Serial Number (SN) = XXXXXXXXX Vendor Name = CISCO-AGILENT Vendor OUI (IEEE company ID) = 00.30.D3 (12499) CLEI code = WMOTBEVAAB Cisco part number = 10-1989-02 Device State = Enabled. Date code (yy/mm/dd) = 06/06/30 Connector type = LC. Encoding = 64B/66B SONET Scrambled NRZ Minimum bit rate = 9900 Mbits/s Maximum bit rate = 10500 Mbits/sGSR#sh hw-module subslot 10/0 transceiver 0 status The Transceiver in slot 10 subslot 0 port 0 is enabled. Module temperature = 18.148 C Transceiver Tx bias current = 29416 uAmps Transceiver Tx power = -1 dBm Transceiver Rx optical power = 0 dBmGSR# |
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| Cisco CRS(-1 / -3) | ||
| 4x10GE 8x10GE |
show controllers TenGigE X/Y/Z/K phy | utility head -n 22 | |
RP/0/RP1/CPU0:CRS#show controllers tenGigE 0/0/0/0 phy | utility head -n 22XENPAK Information:===================Vendor Name: CiscoVendor PN: B1G-F4T-X3NP4KVendor Rev: 1Vendor SN: x9j29csi3kdPackage OUI: 00c09820Vendor OUI: 00000000Vendor Date Code: 2009010101Center Wavelength:chan0 = 1310.00 nmchan1 = 0.00 nmchan2 = 0.00 nmchan3 = 0.00 nmDigital Optical Monitoring:Transceiver Temp: 36.406 CLaser Bias Current: 263.5200 mALaser Output Power: 0.7432 mW, -1.3 dBmReceive Optical Power: 0.3272 mW, -4.9 dBmRP/0/RP1/CPU0:CRS# |
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| POS | show controllers SONET X/Y/Z/K | be Opt | |
RP/0/RP0/CPU0:CRS#show controllers SONET X/Y/Z/K | be OptThu Dec 2 14:48:27.683 CET Optics type: OC192 + 10GBASE-L Clock source: internal (actual) internal (configured) Rx S1: 0x0 Tx S1: 0xfOptical Power Monitoring (accuracy: +/- 1dB) Rx power = 0.2621 mW, -5.8 dBm Tx power = 0.4207 mW, -3.8 dBm Tx laser current bias = 49.3 mARP/0/RP0/CPU0:CRS# |
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| SIP / SPA | show hw-module subslot X/Y/Z status pluggable-optics K | |
RP/0/RP0/CPU0:CRS#show hw-module subslot 0/7/1 status pluggable-optics 0Mon Nov 21 10:40:26.209 CETSPA 0/7/1 device pluggable-optics 0/0 info:int Sonet 7/1/0: State: Enabled Environmental Information - raw values Temperature: 36.18 C Supply voltage: 32998 in units of 100uVolt Tx bias: 9624 in units of 2uAmp Tx power: -5 dBm (2491 in units of 0.1 uW) Rx power: -4 dBm (3014 in units of 0.1 uW) Transceiver: Enabled SW TX Fault: unavailable SW LOS: unavailable No active alarms No active warnings Version Identifier (VID): V01 Product Identifier (PID): SFP-OC48-SR Part Number (PN): 10-1961-01 CLEI: WM1T2TTAAARP/0/RP0/CPU0:CRS# |
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| 4x10GE IPoDWDM | show controllers dwdm X/Y/Z/K | |
RP/0/RP0/CPU0:CRS#show controllers dwdm 0/0/0/0 opticsOptics Status Optics Type: Cisco 10Gb DWDM Wavelength Info: C-Band, MSA ITU Channel=37, Frequency=194.30THz, Wavelength=1542.936nm TX Power = 4.82 dBm RX Power = -14.99 dBmRP/0/RP0/CPU0:CRS# |
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| Juniper JUNOS devices | ||
| All linecards | show interfaces diagnostics optics X/Y | |
kll@JUNIPER> show interfaces diagnostics optics ge-0/0/0Physical interface: ge-0/0/0 Laser bias current : 8.800 mA Laser output power : 0.3870 mW / -4.12 dBm Module temperature : 28 degrees C / 82 degrees F Module voltage : 3.3110 V Receiver signal average optical power : 0.2179 mW / -6.62 dBm Laser bias current high alarm : Off Laser bias current low alarm : Off Laser bias current high warning : Off Laser bias current low warning : Off Laser output power high alarm : Off Laser output power low alarm : Off Laser output power high warning : Off Laser output power low warning : Off Module temperature high alarm : Off Module temperature low alarm : Off Module temperature high warning : Off Module temperature low warning : Off Module voltage high alarm : Off Module voltage low alarm : Off Module voltage high warning : Off Module voltage low warning : Off Laser rx power high alarm : Off Laser rx power low alarm : Off Laser rx power high warning : Off Laser rx power low warning : Off Laser bias current high alarm threshold : 36.544 mA Laser bias current low alarm threshold : 0.000 mA Laser bias current high warning threshold : 26.544 mA Laser bias current low warning threshold : 0.000 mA Laser output power high alarm threshold : 0.5960 mW / -2.25 dBm Laser output power low alarm threshold : 0.1490 mW / -8.27 dBm Laser output power high warning threshold : 0.4740 mW / -3.24 dBm Laser output power low warning threshold : 0.1880 mW / -7.26 dBm Module temperature high alarm threshold : 85 degrees C / 185 degrees F Module temperature low alarm threshold : -5 degrees C / 23 degrees F Module temperature high warning threshold : 75 degrees C / 167 degrees F Module temperature low warning threshold : 0 degrees C / 32 degrees F Module voltage high alarm threshold : 3.600 V Module voltage low alarm threshold : 3.000 V Module voltage high warning threshold : 3.500 V Module voltage low warning threshold : 3.100 V Laser rx power high alarm threshold : 0.5011 mW / -3.00 dBm Laser rx power low alarm threshold : 0.0125 mW / -19.03 dBm Laser rx power high warning threshold : 0.5011 mW / -3.00 dBm Laser rx power low warning threshold : 0.0125 mW / -19.03 dBm{master:0}kll@JUNIPER>
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