Olson Technology OLMR - Manual (Page 5)

025-000565 Rev. X9 www.olsontech.com 4
RF PERFORMANCE
The specifications are cited below with 12dB link optical loss and >-55dB optical
back-reflection. If the link optical loss differs from 12dB, the RF gain will change 2dB for
each 1dB of optical loss (i.e., a link with a 6dB of optical loss will have a minimum RF gain of
+3dB.) Also, when optimizing the RF performance, the main concern involves setting the RF
signal level. Typically, the optimal total RF power into the transmitter should be near -37dBm
per transponder, assuming 32 transponders; this corresponds to a total RF input power level
of -22dBm. Due to the wide dynamic range of this system, the RF input power can deviate
from this optimal value and still provide good results.
Item Specifications @ +25°C
RF Frequency Range 10-3,600MHz
Gain Flatness (>50MHz) ± 1.5dB for any 500MHz
± 0.35dB for any 40MHz
Return Loss 10dB typical
I/O Connector F-Type Female (75Ω) or SMA (50Ω)
Link Gain (PIN Detector)
Link Gain (APD Option) -4 ± 5dB
+3 ± 5dB
Noise Figure 15dB to 45dB
Rx Output 1dB Compression >-20dBm
Note: Link gain is typical when used with the Olson OLRT-X3613-D5-75-SA, L-Band transmitter.
OPTICAL PERFORMANCE
Item Specification
Optical Fiber Single Mode 9/125µm (SMF-28 or Equiv.)
Rx Wavelength 1270-1610nm
Rx Optical Input Power (PIN Detector) -15dBm to +3dBm
Rx Optical Input Power (APD Option)
-22dBm to -4dBm
Rx Optical Return Loss >55dB typical
Rx Optical Connector SC/APC (Standard) FC/APC (Optional)
Optical Loss Budget
Tx Laser Power/Type +4dBm DFB +5dBm DFB +10dBm DFB/DWDM
Optical Loss Budget (PIN Detector) 1 to 19dB 2 to 20dB 7 to 25dB
Optical Loss Budget (APD Option) 8 to 26dB 9 to 27dB 14 to 32dB