Series 500
Inline Optical Power Monitor
EigenLight’s Series 500 (S500) is a low cost and compact instrument formeasuring the power of a signal being transmitted through an opticalfiber. Unlike conventional power meters, EigenLight’s power monitor
can be installed in live systems for real-time, continuous power
measurement, without compromising system performance.
(Patchcords sold separately)

The Series 500 features a digital readout of the instantaneous power of a transmitted signal. The display can be toggled between
wavelengths, as well as absolute and relative power readings. The device includes a USB port for interfacing with EigenLight’s powermonitoring software (sold separately). The Series 500 utilizes patented optical tap technology that maintains fiber continuity whilemeasuring optical power. This allows for unrivalled performance among competing technology, including ultra-low insertion loss, lowpolarization dependent loss, and high directivity. The device can be used in highly sensitive systems, such as optical sensor, data centers,FTTH, metro and long haul optical networks without compromising the optical signal. A built-in stand, magnets for mounting on ferrous
surfaces, and easy battery access make the device practical for use in field and lab applications. The Series 500 is available in singlemode,multimode, and PM fibers with specialty fiber available upon request.

Power Monitoring Application

Optical Systems

Transmitter/LASER output power monitoring

Optical Sensor Systems

Receiver input power monitoring

Coherent and Non-Coherent Optical Networks
Optical Test Instruments

Monitoring the input, output, pump and reflected power of an
EDFA or Raman Amplifier

Optical Coherence Tomography
Medical Sensors and Instruments

Optical Network Performance Monitoring for Long Haul, Metro,
FTTX or Data CentersFiber LASERs

Monitoring the power of optical systems used in manufacturing,
research & development and field testing environments

standard Specifications

Model 51xStandard Monitor
Fiber TypeInsertion Loss (dB)1
Power Range (dBm)
Absolute Accuracy (dB)2
Directivity (dB)3Polarization Stability (dB)
Modal Sensitivity (dB)
Extinction Ratio (dB)Power
Battery Life
Display Resolution
Display Refresh Rate
Output Interface
Operating Temperature
Storage Temperature
Size (Housing Only)
WeightHousing Material

SMF≤0.5-50 to +16+/-0.2≥20≤0.2, ≤0.14
NANAPM
NA-50 to +16+/-0.2≥20NANA≥18

Model 52x
PMLow Loss, High Power≤0.2SMF-40 to +26≤0.2+/-0.2-40 to +26≥153+/-0.2NA≥20NA≤0.2, ≤0.14≥18NAMM≤1.5-50 to +16+/-0.30NA≤1NANA
1 Lithium Coin Cell (CR2477N), USB
3 Years Typical (Slow Mode)
0.1 dB
0.1 Sec/0.8 Sec (Fast/Slow Mode)
Micro USB
0°C to +40°C-10°C to +60°C
94.5 x 56.5 x 27 mm
100 grams
Lexan Body, Santoprene Bumpers

1. Excludes connector losses
2. Measured at the output and calibrated wavelengths
3. Measured at 1550 nm
4. Specify polarization stability spec of ≤0.2 or ≤0.1 when ordering

30 centre road, suite 6, somersworth, nh 03878 | 603 692 9200 eigenlight.com

SERIES 500
Inline Optical Power Monitor
S500 Layout
usb interface
Micro USB Port for interfacing with
EigenLight’s Power Monitoring Software

LCD Display

Directivity
Direction of light propagation

LCD screen display flips when screen
orientation button is pressed, allowing
for viewing from the opposite sidepigtail interface
Universal Bulkheads (non-removable)
Universal Adaptor (FC, SC, and LC Adapters)

SCREEN Control

wavelength/speed control

Screen orientation button

Wavelength selection button/fast and slow mode
selection button

Relative or absolute power measurement
Relative and absolute power (dB/dBm) display modes

S500 Accessories (Sold separately)

Variable Optical Attenuator
Extra Batteries
Calibrated Spectral Curve
Mirror Reflectors
Additional Adapters

EigenLight’s variable optical attenuator (VOA) can be attached to theSeries 500 input bulkhead adapter. The VOA allows fingertip control of
the optical power within your system.

Patchcords
Variable Optical Attenuator
Power Monitoring Software

Attenuation Range
Attenuation Resolution
Return Loss

Specifications
40 dB
0.1 dB>40 dB

Power Monitoring Software
EigenLight’s power monitoring softwareinterfaces with the S500 through a USB port.
The software allows datalogging and remotecontrol of up to 24 channels simultaneously.
Please contact Sales@EigenLight.com forordering information.

30 centre road, suite 6, somersworth, nh 03878 | 603 692 9200 eigenlight.com

SERIES 500
Inline Optical Power Monitor
Ordering Information
Single Mode Fiber (SMF)
performance code
0= PS ≤0.2 dB
2= PS ≤0.1 dB

Spectral code 21= 1310 nm
x= Blank

Power range
1= -50 to +16 dBm
2= -40 to +26 dBm

output adapter

M5000Input Adapter

10= FC/PC
15= FC/APC
30= SC/PC
35= SC/APC
40= LC/PC
45= LC/APC

10= FC/PC
15= FC/APC
30= SC/PC
35= SC/APC
40= LC/PC
45= LC/APC

Spectral Code 1
0= 1550 nm

Spectral code 32= 1480 nm
x= Blank

MultiMode Fiber (MMF)
performance code
Spectral code 20= Default

1= 1310 nm1
x= Blank

Power range
1= -50 to +16 dBm

M5 10output adapter
10= FC/PC
30= SC/PC
40= LC/PCx0

fiber typeInput Adapter

C= MM OM3 50/125
E= MM OM4 50/125
G= MM 62.5/125
K= MM 100/125

10= FC/PC
30= SC/PC
40= LC/PC

Spectral Code 1
0= 1550 nm
3= 850 nm
4= 980 nm

Polarization Maintaining Fiber
performance code
0= PS ≤0.2dB

Power range
1= -50 to +16 dBm
2= -40 to +26 dBm

output adapter

M5

fiber type2= PM 1550
4= PM 1310
6= PM 980

010= FC/PC
15= FC/APC

xx0Input Adapter

Spectral Code 1

10= FC/PC
15= FC/APC

0= 1550 nm
1= 1310 nm
4= 980 nm(1) only available with models including Spectral Code 1 with a value of 1550nm

30 centre road, suite 6, somersworth, nh 03878 | 603 692 9200 eigenlight.com