**10. Conclusion**

in 4 hours of measuring time were performed with temperature controlling of the OEIC

After thermal cycling, the test for mechanical shock and vibration stress was completed. Me‐ chanical shock tests must be performed in all three Cartesian directions. The measured ac‐ celerations amounted to more than 200 g within 3 ms. The vibration tests where performed by a so called "shaker machine". The excitation of the module was measured with an accel‐ eration sensor and a digital oscilloscope. The acceleration was controlled to be stronger than 16 g within a broad spectral bandwidth of 50-5000 Hz. Several tests figures can be run with

To reach a certified test label for opto-electronic modules according to the Telcordia specifi‐ cations, eleven modules must undergo the environmental and mechanical stress test. None of the tested specimens is allowed to show a failure. The strong requirements for the test

procedures are only achieved by substantial preliminary testing of the modules.

**Figure 30.** Temperature test of the laser module between -15°C and 50°C.

*Sources of supply for environmental standard tests-*

VDE-Verlag http://www.vde-verlag.de

DIN http://www.din.de

shown in figure 30.

the so called "shaker machine":

440 Optoelectronics - Advanced Materials and Devices

**7.** Resonance test and -strain **8.** Shock excitation 10 – 10.000g

**5.** Sinusoidal acceleration1-1.000g **6.** Noisy acceleration 1-10.000 Hz

We designed and fabricated a series of modules for one-sided and double-sided fiber-chip coupling for single mode and multimode fibers with simultaneous coupling of both chip sides by a new-patented set-up. Additional, we created passive and active modules with temperature control and multi fiber connections up to 16 fibers via fiber arrays. The mod‐ ules have been tested in a reliability stress program between -40° C and +80°C and by a vi‐ bration shaker. Electrical modulation signals up to 50 GHz can be fed via RF connectors to the OEIC. The packages show good long-term stability and are well suited for rapid proto‐ typing in laboratory environmentand high volume production.
