ES10/ES26
Page 19/104
Document status: released
Operating Manual
rev. 01, 03.11.08
ES26XL
Optical Properties
ES26XL-85 ES26XL-100
Wavelength
1548 nm …1560 nm or ITU-grid CH23… CH37
Side mode suppression
[dB]
> 30
Wavelength adjustment range
[GHz]
-100, -50, 0, +50, +100
Optical power
[dBm]
2 x 8.5 min. 2 x 10.0 min.
Relative intensity noise for CATV
(for optical fiber return loss >40km)
[dBc/Hz]
< -158
(typ. < -160)
SBS-Suppression threshold:
CATV&SAT-IF application, 25km
CATV application, 65 km
[dBm]
[dBm]
+15 *)
+19
Laser linewidth (typ.)
[MHz]
0.3
*) SBS suppression threshold should be adjusted application individually as low as possible for best signal performance, since using +14…+15 dBm
threshold may result in 2 dB penalty of CNR for carrier frequencies 80…110 MHz and 4 dB penalty for band I (47…68 MHz) carrier frequencies.
Electrical Properties CATV
RF-frequency Range
[MHz]
47…862
Frequency response flatness
[dB]
< ±0.75
Nom. Input level per TV channel
[dBµV]
80
Input level range (per carrier)
[dBµV]
78…96 (for OMI =5% per CATV carrier)
True RMS input level range
[dBm]
-16…+2 (for ALC correctly working)
Slope range
[dB]
-2 (cable equivalent) … +8 (cable equalization)
RF impedance
[
Ω
]
75
Return loss
[dB]
> 20 (@ 47MHz) -1.5dB/octave, minimum 15
RF monitor (test point) level
[dB]
-20 (-0.8 … +0.2)
Electrical Properties SAT-IF
RF-frequency Range
[MHz]
950…2605
Frequency response flatness
[dB]
< ±2
Input level range (
per SAT-IF carrier)
[dBµV]
82…98 (OMI
SAT
= 1.0% per SAT-IF carrier)
True RMS input level range
[dBm]
-11…+5 (for ALC correctly working)
RF impedance
[
Ω
]
75
Return loss
[dB]
> 10
RF monitor (test point) level
[dB]
66 ± 2.5 (for OMI = 1.0%)