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LMC10NEG3347-J28 Datasheet(PDF) 5 Page - Bookham, Inc. |
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LMC10NEG3347-J28 Datasheet(HTML) 5 Page - Bookham, Inc. |
5 / 14 page Data Sheet 5 Glossary BFM Back Facet Monitor diode CW Continuous wave EOL End of life FWHM Full width half maximum MZ Mach-Zehnder interferometer SOL Start of life Tcase Case temperature Pk-pk Peak to peak BCT Bias Control Tap Notes to Characteristic Tables [1] Refer to Bookham applications document AN0117 for Tx case temperature measurement definition. [2] Power variation over case temperature is measured reference to 30°C case temperature. [3] Measured reference to a high speed sampling oscilloscope (unfiltered). EOL figure does not include modulator driver component ageing if applicable. [4] Measured with 1600ps/nm chromatic dispersion, ITU-T G652 optical fibre, 10.709Gb/s, 223-1 PRBS NRZ sequence. The penalty calculation is made at a BER level of 10-10. RX OSNR > 30dB [35dB target], RBW of 0.1nm using a Bookham standard receiver with differential drive to modulator. The device is driven directly from a pattern generator. Receiver decision point self optimised for amplitude and phase. [5] Measured at the input to the LMC10NEG. Driver selection must take into account modulator driver to transmitter transmission line losses. Refer to Bookham applications document AN0137. [6] Optical return loss of plant attached to LMC10NEG fibre connector. [7] Optical return loss looking back into the LMC10NEG averaged over polarisation, with target value of -27dB. [8] This is a requirement for the crossing control loop over life and temperature. The accuracy over life and temperature will be a function of the control loop circuit design. Reference application note AN0136. [9] Assuming 50% crossing level set at start of life. EOL figure does not include modulator driver component ageing if applicable. [10] Slope of the etalon signal can be either positive or negative. [11] Maintain the start of life locking ratio over life to hold wavelength constant. [12] Assumes wavelength is set to ITU wavelength at start of life, closed loop wavelength control by maintaining constant locking ratio. [13] Wavelength variation with change in laser drive current at constant temperature. [14] The MZ bias control tap responsivity is bias voltage dependent. [15] The thermistor current should not exceed 100 µA to prevent self-heating effects. The thermistor resistance varies with temperature according to the following Steinhart-Hart equation, where C1= 1.2156x10-3, C2= 2.1925x10-4, C3=1.5241x10-7 for the thermistor type used. Temperature is required in Kelvin. Note: AC parameters such as extinction ratio and waveform crossing may be system dependent. |
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